Dell P2423DE User’s Guide [EN]

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Dell USB-C Monitor

P2423DE/P2723DE

User’s Guide

Monitor Model: P2423DE/P2723DE Regulatory Model: P2423DEc/P2723DEc

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NOTE: A NOTE indicates important information that helps you make better use of your computer.

CAUTION: A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed.

WARNING: A WARNING indicates a potential for property damage, personal injury, or death.

Copyright © 2022 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. USB Type-C® and USB-C® are registered trademarks of USB Implementers Forum. Other trademarks may be trademarks of their respective owners.

2022 – 02

Rev. A00

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Contents

Safety instructions.......................... 6

About your monitor ..........................7

Package contents . . . . . . . . . . . . . . . . . . . . . . 7

Product features . . . . . . . . . . . . . . . . . . . . . . .9

Identifying parts and controls . . . . . . . . . . . . . . . 10

Front view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Back view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Bottom view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Monitor specifications . . . . . . . . . . . . . . . . . . . 14

Resolution specifications . . . . . . . . . . . . . . . . . . . . . . 16

Supported video modes . . . . . . . . . . . . . . . . . . . . . . . 16

Preset display modes . . . . . . . . . . . . . . . . . . . . . . . . 17

Physical characteristics. . . . . . . . . . . . . . . . . . . . . . . 20

Environmental characteristics . . . . . . . . . . . . . . . . . . . 22

Pin assignments . . . . . . . . . . . . . . . . . . . . . . 23

DisplayPort connector (in) . . . . . . . . . . . . . . . . . . . . . 23

DisplayPort connector (out) . . . . . . . . . . . . . . . . . . . . 24

HDMI connector . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Universal Serial Bus (USB) interface . . . . . . . . . . . . . . . .26

RJ45 port (connector side) . . . . . . . . . . . . . . . . . . . . . 29

Plug and play capability . . . . . . . . . . . . . . . . . . 32

LCD monitor quality and pixel policy . . . . . . . . . . . 32

Ergonomics. . . . . . . . . . . . . . . . . . . . . . . . . 32

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Handling and moving your display. . . . . . . . . . . . . 34

Maintenance guidelines . . . . . . . . . . . . . . . . . . 35

Cleaning your monitor. . . . . . . . . . . . . . . . . . . . . . . .35

Setting up the monitor.......................37

Attaching the stand . . . . . . . . . . . . . . . . . . . . 37

Connecting your monitor . . . . . . . . . . . . . . . . . 40

Connecting the DisplayPort (DisplayPort to DisplayPort) cable . 41

Connecting the USB-C (C-A) cable . . . . . . . . . . . . . . . . 41

Connecting the USB-C (C-C) cable . . . . . . . . . . . . . . . . 41

Connecting the HDMI cable (optional) . . . . . . . . . . . . . . . 42

Connecting the monitor for DP Multi-Stream Transport (MST)

function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Connecting the monitor for USB-C Multi-Stream Transport (MST)

function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Connecting the RJ45 cable (optional) . . . . . . . . . . . . . . . 43

Dell Power Button Sync (DPBS). . . . . . . . . . . . . . 44

Connecting the monitor for DPBS for the first time. . . . . . . . 47

Using DPBS function . . . . . . . . . . . . . . . . . . . . . . . . 48

Connecting the monitor for USB-C Multi-Stream Transport (MST)

function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Connecting the monitor for USB-C. . . . . . . . . . . . . . . . . 51

Organizing cables . . . . . . . . . . . . . . . . . . . . . 53

Securing your monitor using Kensington lock (optional) 53

Removing the monitor stand . . . . . . . . . . . . . . . 54

VESA wall mounting (optional) . . . . . . . . . . . . . . 55

Operating the monitor ...................... 56

Power on the monitor . . . . . . . . . . . . . . . . . . . 56

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Using the joystick control . . . . . . . . . . . . . . . . . 56

Using the On-Screen Display (OSD) menu . . . . . . . . 57

Accessing the Menu Launcher . . . . . . . . . . . . . . . . . . . 57

Using the navigation keys. . . . . . . . . . . . . . . . . . . . . .58

Accessing the menu system . . . . . . . . . . . . . . . . . . . . 59

Menu and Power button lock . . . . . . . . . . . . . . . . . . . . 71

OSD warning messages . . . . . . . . . . . . . . . . . . . . . . . 73

Setting the maximum resolution . . . . . . . . . . . . . 79

Using the tilt, swivel, and vertical extension . . . . . . . 80

Tilt, swivel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Vertical Extension . . . . . . . . . . . . . . . . . . . . . . . . . .80

Rotating the monitor . . . . . . . . . . . . . . . . . . . . . . . . 81

Rotate clockwise . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Rotate counterclockwise . . . . . . . . . . . . . . . . . . . . . . 82

Adjusting the rotation display settings of your system . . . . . . 83

Troubleshooting ........................... 84

Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Built-in diagnostics . . . . . . . . . . . . . . . . . . . . 85

Common problems . . . . . . . . . . . . . . . . . . . . . 87

Universal Serial Bus (USB) specific problems . . . . . . 92

Regulatory information ..................... 94

FCC notices (U.S. Only) and other regulatory information 94

EU product database for energy label and product

information sheet . . . . . . . . . . . . . . . . . . . . . 94

Contacting Dell. . . . . . . . . . . . . . . . . . . . . . . 94

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Safety instructions

Use the following safety guidelines to protect your monitor from potential damage and to ensure your personal safety. Unless otherwise noted, each procedure included in this document assumes that you have read the safety information that shipped with your monitor.

NOTE: Before using the monitor, read the safety information that is shipped with your monitor and printed on the product. Keep the documentation at a secure location for future reference.

WARNING: Use of controls, adjustments, or procedures other than those specified in this documentation may result in exposure to shock, electrical hazards, and/or mechanical hazards.

WARNING: The possible long-term effect of listening to audio at high volume through the headphones (on monitor that support it) may cause damage to your hearing ability.

• Place the monitor on a solid surface and handle it carefully. The screen is fragile and can be damaged if dropped or hit with a sharp object.

• Ensure that your monitor is electrically rated to operate with the AC power available in your location.

• Keep the monitor in room temperature. Excessive cold or hot conditions can have an adverse effect on the liquid crystal of the display.

• Connect the power cable from the monitor to a wall outlet that is near and accessible. See Connecting your monitor.

• Do not place and use the monitor on a wet surface or near water.

• Do not subject the monitor to severe vibration or high impact conditions. For example, do not place the monitor inside a car trunk.

• Unplug the monitor when it is going to be left unused for an extended period.

• To avoid electric shock, do not attempt to remove any cover or touch the inside of the monitor.

• Read these instructions carefully. Keep this document for future reference. Follow all warnings and instructions marked on product.

• Certain monitors can be wall mounted using the VESA mount that is sold separately. Ensure to use the correct VESA specifications as mentioned in the wall mounting section of the User’s Guide.

For information on safety instructions, see the Safety, Environmental, and Regulatory Information (SERI) document that is shipped with your monitor.

6 │ Safety instructions

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About your monitor

Package contents

The following table provides the list of components that are shipped with your monitor. If any component is missing, contact Dell. For more information, see

Contacting Dell.

NOTE: Some items may be optional and may not ship with your

monitor. Some features may not be available in certain countries.

Component image

Component description

Display

Stand riser

Stand base

Power cable (varies by country)

About your monitor │ 7

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DisplayPort to DisplayPort cable (1.8 meters)

Super speed USB 10 Gbps (USB 3.2 Gen2) Type-C to Type-C upstream cable (C-C cable) (1 meter)

Super speed USB 5 Gbps (USB 3.2 Gen1) Type-C to Type-A upstream cable (C-A cable) (1.8 meters)

Cable tie

• Quick Setup Guide

• Safety, Environmental and Regulatory Information

8 │ About your monitor

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Product features

The Dell P2423DE/P2723DE monitor has an active matrix, Thin-Film Transistor (TFT), Liquid Crystal Display (LCD) and LED backlight. The monitor features include:

• P2423DE: 60.45 cm (23.8 in.) viewable area display (measured diagonally).

• P2723DE: 68.47 cm (27 in.) viewable area display (measured diagonally).

• 2560 x 1440 resolution, with full-screen support for lower resolutions.

• Color gamut of 99% sRGB (typical).

• Digital connectivity with DisplayPort, USB-C and HDMI.

• Single USB-C to supply power (PD 90 W) to a compatible notebook while receiving video & data signal.

• Tilt, swivel, height, and rotate adjustment capabilities.

• Ultra-thin bezel minimizes the bezel gap in multi-monitor usage, enabling easier setup with an elegant viewing experience.

• Removable stand and Video Electronics Standards Association (VESA™) 100 mm mounting holes for flexible mounting solutions.

• Equipped with 1 USB-C upstream port and 4 SuperSpeed USB 5 Gbps (USB 3.2 Gen1) Type-A downstream ports.

• USB-C and RJ45 ports enable a single-cable, network-connected experience.

• Plug and play capability if supported by your system.

• On-Screen Display (OSD) adjustments for ease of set-up and screen optimization.

• Power and joystick buttons lock.

• Security lock slot.

• Stand lock.

• ≤ 0.3 W in Standby Mode.

• Optimize eye comfort with a flicker-free screen and low blue light feature.

• The monitor use Low Blue Light panel and is in compliance with TUV Rheinland (Hardware Solution) at factory reset/default setting model (Preset mode: Standard).

WARNING: The possible long-term effects of blue light emission from

the monitor may cause damage to the eyes, which includes but is not limited to eye fatigue and digital eye strain. ComfortView Plus feature is designed to reduce the amount of blue light emitted from the

monitor to optimize eye comfort.

About your monitor │ 9

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Identifying parts and controls

Front view

Label Description

1 Power LED indicator

Solid white light indicates that the monitor is turned on and functioning normally. Blinking white light indicates that the monitor is in Standby Mode.

10 │ About your monitor

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Back view

1 2

3 4

DELL P2723DE

Flat Panel Monitor /Monitor Plano Panel /Moniteur écran plat /液晶顯示器 Model No. /Modelo /N°de modelo /型號/모델명/モデル番号: P2723DEc

輸入電源:交流電壓100-240伏特,2安培,50/60赫茲

Удельная мощность рабочего режима - XXXX Вт/см² Consumo de energía en operación: XXX Wh Потребляемая мощность изделием в режиме ожидания - 0,XX Вт Потребляемая мощность изделием в выключенном режиме - 0,XX Вт

L'appareil doit être branché sur une prise de courant munie d'une mise à la terre. Made in China /Fabricado en China/сделанный в Китай /Fabriqué en Chine/中國製造警語: 使用過度恐傷害視力。 www.dell.com/regulatory_compliance Raheen Business Park Limerick Ireland (for EU Only) CAN ICES-003(B)/NMB-003(B) For UK only: Cain Road, Bracknell, RG12 1LF

(1) this device may not cause harmful interference, and

デル・テクノロジーズ

入力:100V, 2 A, 50/60 Hz

XXXXXX-XXXX

R-R-E2K-P2723DEc

신청인:DELL INC. 제조자:L&T Display Technology(Fujian)Ltd.(for Korea)

080-200-3800

Q40G027N-700-XXA

DELL P2723DE

液晶显示器型号:P2723DE 输入电源:

100-240V 50/60Hz,2A

中国制造

Date of Mfg/生产日期/生產日期: December. 2021

MAC address:XXXXXXXXXXXX

정격입력/Entrada de energía:100-240V 50/60Hz, 2A

The equipment must be connected to an earthed mains socket-outlet.

SVC Tag: 1234567 Express Service Code: 123 456 789 0

XXXXXXXX

XXXXXX-XX

R33037 RoHS

XXXXX

S/N: CN-0NJ5MJTV200-1C1-001LA00

Q40G027N-700-XXA

Back View with monitor stand

Label Description Use

1 VESA mounting holes (100 mm x

100 mm - behind attached VESA Cover)

Wall-mount the monitor using VESAcompatible wall mount kit (100 mm x 100 mm).

2 Regulatory label Lists the regulatory approvals.

3 Stand release button Releases the stand from the monitor.

4 Barcode, serial number, and

Service Tag label

Contains monitor details and support information. Refer to this label if you need to contact Dell for technical support.

5 Power On/Off button To turn the monitor on or off.

6 Joystick Use to control the OSD menu. (For

more Information, see Operating the

monitor)

7 Cable-management slot Use to organize cables by inserting

them through the slot.

About your monitor │ 11

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Bottom view

Bottom view without monitor stand

Label Description Use

1 Security lock slot

(based on Kensington Security Slot)

2 Power connector Connect the power cable (shipped with your

3 HDMI port Connect to your computer using a HDMI cable

4 Stand lock To lock the stand to the monitor using a M3 x 6

5 DisplayPort (in) Connect your computer with the DisplayPort cable

6 DisplayPort (out) DisplayPort output for MST (multi-stream

Secure your monitor using a security lock (purchased separately) to prevent unauthorized movement of your monitor.

monitor).

(purchased separately).

mm screw (screw not included).

(shipped with your monitor).

transport) capable monitor. To enable MST, see

Connecting the monitor for DP Multi-Stream Transport (MST) function.

12 │ About your monitor

NOTE: Remove the rubber plug when

using DisplayPort out connector.

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7 USB-C upstream port Connect the USB-C (C-C) or (C-A) cable that

came with your monitor to the computer. This port supports USB Power Delivery, Data, and DisplayPort video signal. The SuperSpeed USB 5 Gbps (USB 3.2 Gen1) Type-C port supports Alternate Mode DP1.4 with a maximum resolution of 2560 x 1440 at 60 Hz, PD 20 V/4.5 A, 15 V/3 A, 9 V/3 A, 5 V/3 A.

NOTE: USB-C is not supported on

versions of Windows prior to Windows

10.

8 SuperSpeed USB 5

Gbps (USB 3.2 Gen1) Type-A downstream port (4)

9 RJ45 port Connect the Internet. You can surf Internet via

*To avoid signal interference, when a wireless USB device has been connected to a USB downstream port, it is NOT recommended to connect any other USB devices to the adjacent port(s).

Connect your USB device.*

NOTE: To use these ports, you must

connect the USB-C (C-C) or (C-A) cable (shipped with your monitor) to the USB-C upstream port on the monitor and to your computer.

RJ45 only after you have connected the USB-C (C-C) or (C-A) cable (shipped with your monitor) from the computer to the monitor.

About your monitor │ 13

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Monitor specifications

Model P2423DE P2723DE

Screen type Active matrix - TFT LCD

Panel type In-Plane Switching Technology

Aspect ratio 16:9

Viewable image

Diagonal

604.50 mm (23.80 in.)

684.70 mm (26.96 in.)

Horizontal, Active Area

Vertical, Active Area

Area

Native resolution and

refresh rate

Pixel pitch 0.2058 mm x 0.2058 mm 0.2331 mm x 0.2331 mm

Pixel per inch (PPI) 123 109

Viewing angle

Horizontal

Vertical

Luminance output 300 cd/m² (typical) 350 cd/m² (typical)

Contrast ratio 1000 to 1 (typical)

Display screen coating Anti-glare treatment of the front polarizer (3H) hard

Backlight LED edgelight system

Response time 5 ms (Fast mode)

Color depth 16.7 million colors (8 bit)

Color gamut sRGB 99% (typical)

526.85 mm (20.74 in.)

296.35 mm (11.67 in.)

156132.00 mm2 (242.01 in.2)

2560 x 1440 at 60 Hz

178° (typical)

coating

8 ms (Normal mode)

596.74 mm (23.49 in.)

335.66 mm (13.21 in.)

200301.75 mm2 (310.47 in.2)

14 │ About your monitor

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Connectivity • 1 x HDMI port version 1.4 (HDCP 1.4)

• 1 x DisplayPort version 1.4 (HDCP 1.4)

• 1 x DisplayPort (Out) with MST (HDCP 1.4)

• 1 x USB-C upstream port (Alternate mode with DisplayPort 1.4, Power Delivery PD up to 90 W)*

• 4 x SuperSpeed USB 5 Gbps (USB 3.2 Gen1) downstream port

• 1 x RJ45 port

Bezel width (edge of monitor to active area)

Top

5.42 mm

7.37 mm

Left/Right

Bottom

Adjustability

Height adjustable stand

Tilt -5° to 21°

Swivel -45° to 45°

Pivot -90° to 90°

Cable management Yes

Dell Display Manager compatibility

Security Security lock slot (cable lock optional purchase)

*DisplayPort and USB-C (Alternate mode with DisplayPort 1.4): HBR3 is supported.

5.48 mm

16.72 mm

150 mm

Easy Arrange and other key features

7.43 mm

17.77 mm

About your monitor │ 15

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Resolution specifications

Model P2423DE/P2723DE

Horizontal scan range 29 kHz to 113 kHz

Vertical scan range 49 Hz to 75 Hz (automatic)

Maximum preset resolution

Supported video modes

Model P2423DE/P2723DE

Video display capabilities (HDMI & DisplayPort & USB-C DP alternate mode)

2560 x 1440 @ 60 Hz

480p, 576p, 720p, 1080i(HDMI), 1080p, 1440p

16 │ About your monitor

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Preset display modes

Horizontal

Display Mode

IBM, 720 x 400 31.50 70.10 28.30 -/+ VESA, 640 x 480 31.50 59.90 25.20 -/VESA, 640 x 480 37.50 75.00 31.50 -/-

VESA, 800 x 600 37.90 60.30 40.00 +/+

VESA, 800 x 600 46.90 75.00 49.50 +/+ VESA, 1024 x 768 48.40 60.00 65.00 -/VESA, 1024 x 768 60.00 75.00 78.80 +/+

VESA, 1152 x 864 67.50 75.00 108.00 +/+ VESA, 1280 x 768 47.80 59.90 79.50 -/+

VESA, 1280 x 1024 64.00 60.00 108.00 +/+ VESA, 1280 x 1024 79.90 75.00 135.00 +/+ VESA, 1600 x 1200 75.00 60.00 162.00 +/+ VESA, 1680 x 1050 65.30 60.00 146.30 -/+

CTA, 1920 x 1080 67.50 60.00 148.50 +/+

VESA, 1920 x 1200 74.60 59.90 193.30 -/+ VESA, 2048 x 1080 66.60 60.00 147.20 +/VESA, 2560 x 1440 88.80 60.00 241.50 +/-

Frequency

(kHz)

Vertical

Frequency

(Hz)

Pixel Clock

(MHz)

Sync

Polarity

(Horizontal /

Vertical)

DP Multi-Stream Transport (MST) modes

MST Source Monitor Maximum number of external

monitor that can be supported

2560 x 1440 @ 60 Hz

2560 x 1440 @ 60 Hz • 1 (via USB-C input)

• 3 (via DisplayPort input)

NOTE: Maximum external monitor resolution supported is 2560 x 1440

60Hz only (HBR3).

About your monitor │ 17

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Electrical specifications

Model P2423DE P2723DE

Video input signals • HDMI 1.4/DisplayPort 1.4*, 600 mV for each

differential line, 100 ohm input impedance per differential pair

• USB-C (with DP alternate mode) signal input support

AC input voltage/ frequency/current

100 VAC to 240 VAC / 50 Hz or 60 Hz ± 3 Hz / 2 A (typical)

Inrush current • 120 V: 30 A (Max.) at 0°C (cold start)

• 240 V: 60 A (Max.) at 0°C (cold start)

Power consumption • 0.3 W (Off mode)

• 0.3 W (Standby Mode)

• 20 W (On mode)

• 170 W (Max.)

• 17.5 W (Pon)

• 56.5 kWh (TEC)

• 0.3 W (Off mode)

• 0.3 W (Standby Mode)

• 26 W (On mode)

• 175 W (Max.)

• 19.94 W (Pon)

• 63.98 kWh (TEC)

*HBR3/DisplayPort 1.4 is supported.

As defined in EU 2019/2021 and EU 2019/2013.

Max brightness and contrast setting with maximum power loading on all USB

ports.

Pon: Power consumption of On Mode as defined in Energy Star 8.0 version.

TEC: Total energy consumption in kWh as defined in Energy Star 8.0 version.

This document is informational only and reflects laboratory performance. Your product may perform differently, depending on the software, components and peripherals you ordered and shall have no obligation to update such information.

Accordingly, the customer should not rely upon this information in making decisions about electrical tolerances or otherwise. No warranty as to accuracy or completeness is expressed or implied.

18 │ About your monitor

Page 19

NOTE: This monitor is ENERGY STAR certified.

This product qualifies for ENERGY STAR in the factory default settings which can be restored by “Factory Reset” function in the OSD menu. Changing the factory default settings or enabling other features may increase power consumption that could exceed the ENERGY STAR specified limit.

About your monitor │ 19

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Physical characteristics

Model P2423DE P2723DE

Signal cable type • Digital: DisplayPort, 20 pins

• Digital: HDMI, 19 pins (cable not included)

• Universal Series Bus: Type-C, 24 pins

NOTE: Dell monitors are designed to work optimally with the video

cables that are shipped with your monitor. As Dell does not have control over the different cable suppliers in the market, the type of material, connector and process used to manufacture these cables, Dell does not guarantee video performance on cables that are not shipped with your Dell monitor.

Dimensions (with stand)

Height (extended) 496.11 mm (19.53 in.) 535.20 mm (21.07 in.)

Height (compressed) 364.00 mm (14.33 in.) 385.20 mm (15.17 in.)

Width 537.80 mm (21.17 in.) 611.60 mm (24.08 in.)

Depth 179.57 mm (7.07 in.) 190.10 mm (7.48 in.)

Dimensions (without stand)

Height 318.50 mm (12.54 in.) 360.80 mm (14.20 in.)

Width 537.80 mm (21.17 in.) 611.60 mm (24.08 in.)

Depth 52.15 mm (2.05 in.) 52.18 mm (2.05 in.)

Stand dimensions

Height (extended) 410.80 mm (16.17 in.) 428.30 mm (16.86 in.)

Height (compressed) 364.00 mm (14.33 in.) 381.50 mm (15.02 in.)

Width 245.00 mm (9.65 in.) 268.00 mm (10.55 in.)

Depth 179.57 mm (7.07 in.) 190.10 mm (7.48 in.)

Base 245.00 x 173.00 mm

(9.65 in. x 6.81 in.)

Weight

Weight with packaging 7.97 kg (17.57 lb) 9.78 kg (21.56 lb)

Weight with stand assembly and cables

5.98 kg (13.18 lb) 7.34 kg (16.18 lb)

268.00 x 185.00 mm (10.55 in. x 7.28 in.)

20 │ About your monitor

Page 21

Weight without stand assembly (For wall mount or VESA mount considerations no cables)

Weight of stand assembly 1.63 kg (3.59 lb) 1.84 kg (4.06 lb)

Front-frame gloss Black frame 2-4 gloss units

3.92 kg (8.64 lb) 5.07 kg (11.18 lb)

About your monitor │ 21

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Environmental characteristics

Model P2423DE P2723DE

Compliant Standards

• ENERGY STAR certified monitor.

• EPEAT registered where applicable. EPEAT registration varies by country. See

www.epeat.net for registration status by country.

• RoHS-compliant.

• TCO Certified & TCO Certified Edge.

• BFR/PVC free monitor (excluding external cables).

• Meets NFPA 99 leakage current requirements.

• Arsenic-free glass and Mercury-free for the panel only.

Temperature

Operating 0°C to 40°C (32°F to 104°F)

Non-operating • Storage: -20°C to 60°C (-4°F to 140°F)

• Shipping: -20°C to 60°C (-4°F to 140°F)

Humidity

Operating 10% to 80% (non-condensing)

Non-operating • Storage 5% to 90% (non-condensing)

• Shipping 5% to 90% (non-condensing)

Altitude

Operating (maximum)

Non-operating (maximum)

Thermal dissipation

5,000 m (16,400 ft)

12,192 m (40,000 ft)

• 581.40 BTU/hour (Maximum)

• 68.40 BTU/hour (On Mode)

• 598.50 BTU/hour (Maximum)

• 88.92 BTU/hour (On Mode)

22 │ About your monitor

Page 23

Pin assignments

DisplayPort connector (in)

number

1 ML3 (n) 2 GND 3 ML3 (p) 4 ML2 (n) 5 GND

6 ML2 (p)

7 ML1 (n) 8 GND 9 ML1 (p)

10 ML0 (n)

11 GND 12 ML0 (p) 13 GND 14 GND 15 AUX (p) 16 GND 17 AUX (n) 18 Hot Plug Detect 19 Re-PWR

20 +3.3 V DP_PWR

20-pin side of the

connected signal cable

About your monitor │ 23

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DisplayPort connector (out)

number

1 ML0 (p) 2 GND 3 ML0 (n) 4 ML1 (p) 5 GND

6 ML1 (n)

7 ML2 (p) 8 GND 9 ML2 (n)

10 ML3 (p)

11 GND 12 ML3 (n) 13 CONFIG1 14 CONFIG2 15 AUX CH (p) 16 GND 17 AUX CH (n) 18 Hot Plug Detect 19 Return

20 DP_PWR

20-pin side of the

connected signal cable

24 │ About your monitor

Page 25

HDMI connector

number

1 TMDS DATA 2+ 2 TMDS DATA 2 SHIELD 3 TMDS DATA 2- 4 TMDS DATA 1+ 5 TMDS DATA 1 SHIELD 6 TMDS DATA 1- 7 TMDS DATA 0+ 8 TMDS DATA 0 SHIELD 9 TMDS DATA 0-

10 TMDS CLOCK+

11 TMDS CLOCK SHIELD 12 TMDS CLOCK- 13 CEC 14 Reserved (N.C. on device) 15 DDC CLOCK (SCL) 16 DDC DATA (SDA) 17 DDC/CEC Ground 18 +5 V POWER 19 HOT PLUG DETECT

19-pin side of the

connected signal cable

About your monitor │ 25

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Universal Serial Bus (USB) interface

This section gives you information about the USB ports that are available on the monitor.

SuperSpeed USB 5 Gbps (USB 3.2 Gen1)

Transfer speed Data rate

Maximum power supported

SuperSpeed 5 Gbps 4.5 W

High speed 480 Mbps 4.5 W

Full speed 12 Mbps 4.5 W

USB-C

USB-C Description

Video DisplayPort 1.4*

Data

SuperSpeed USB 5 Gbps (USB

3.2 Gen1)

Power Delivery (PD) Up to 90 W

*HBR3 is supported.

(each port)

26 │ About your monitor

Page 27

USB downstream connector

number

1 VCC

2 D-

3 D+

4 GND

5 SSRX-

6 SSRX+

7 GND

8 SSTX-

9 SSTX+

9-pin side of the

connector

About your monitor │ 27

Page 28

USB-C connector

number

A1 GND B1 GND

A2 TX1+ B2 TX2+

A3 TX1- B3 TX2-

A4 VBUS B4 VBUS

A5 CC1 B5 CC2

A6 D+ B6 D+

A7 D- B7 D-

A8 SBU1 B8 SBU1

A9 VBUS B9 VBUS

A10 RX2- B10 RX1-

A11 RX2+ B11 RX1+

A12 GND B12 GND

USB ports

• 1 USB-C upstream - bottom

• 4 SuperSpeed USB 5 Gbps (USB 3.2 Gen1) Type-A downstream - bottom

Signal name

number

Signal name

NOTE: SuperSpeed USB 5 Gbps (USB 3.2 Gen1) functionality requires

a SuperSpeed USB 5 Gbps (USB 3.2 Gen1)-capable computer.

NOTE: The USB ports on the monitor work only when the monitor is

turned On or in power save mode. If you turn Off the monitor and then turn it On, the attached peripherals may take a few seconds to resume normal functionality.

28 │ About your monitor

Page 29

RJ45 port (connector side)

number

1 CT

2 TD1+

3 TD1-

4 TD2+

5 TD2-

6 TD3+

7 TD3-

8 TD4+

9 TD4-

10 GND

11 GREEN

12 GREEN

13 GREEN_AMBER

14 GREEN_AMBER

Signal

About your monitor │ 29

Page 30

Driver installation

Install the Realtek USB GBE Ethernet Controller Driver available for your system. This is available for download at www.dell.com/support under the “Driver and

download” section.

Network (RJ45) data rate via USB-C max speed is 1000 Mbps.

NOTE: This LAN port is 1000Base-T IEEE 802.3az compliant, supporting Mac Address (Printed on model label) Pass-thru (MAPT), Wake-on-LAN (WOL) from standby mode (S3 only) and UEFI* PXE Boot function [UEFI PXE Boot is not supported on Dell Desktop PC’s (except for OptiPlex 7090/3090 Ultra Desktop)], these 3 features depend on BIOS settings and version of the OS. Functionality may vary with Non Dell PC’s.

*UEFI stands for Unified Extensible Firmware Interface.

RJ45 connector LED status

30 │ About your monitor

Page 31

Label LED Color Description

Link/Activity indicator:

• Blinking - Activity on the port.

1 Left LED Green

2 Right LED Amber or Green

NOTE: The RJ45 cable is non in-box standard accessory.

• Green On - Link is being established.

• Off - Link is not established.

Speed indicator:

• Amber On - 1000 Mbps

• Green On - 100 Mbps

• Off - 10 Mbps

About your monitor │ 31

Page 32

Plug and play capability

You can install the monitor in any Plug and Play-compatible system. The monitor automatically provides the computer system with its Extended Display Identification Data (EDID) using Display Data Channel (DDC) protocols so that the system can configure itself and optimize the monitor settings. Most monitor installations are automatic; you can select different settings if desired. For more information about changing the monitor settings, see Operating the monitor.

LCD monitor quality and pixel policy

During the LCD Monitor manufacturing process, it is not uncommon for one or more pixels to become fixed in an unchanging state which are hard to see and do not affect the display quality or usability. For more information on Dell Monitor Quality and Pixel Policy, see Dell Support site at www.dell.com/pixelguidelines.

Ergonomics

CAUTION: Improper or prolonged usage of keyboard may result in

injury.

CAUTION: Viewing the monitor screen for extended periods of time

may result in eye strain.

For comfort and efficiency, observe the following guidelines when setting up and using your computer workstation:

• Position your computer so that the monitor and keyboard are directly in front of you as you work. Special shelves are commercially available to help you correctly position your keyboard.

• To reduce the risk of eye strain and neck, arm, back, or shoulder pain from using the monitor for long period, we recommend you to:

1. Set the distance of the screen between 20 in. to 28 in. (50 cm - 70 cm) from your eyes.

2. Blink frequently to moisten your eyes or wet your eyes with water after prolonged usage of the monitor.

3. Take regular and frequent breaks for 20 minutes every two hours.

4. Look away from your monitor and gaze at a distant object at 20 feet away for

at least 20 seconds during the breaks.

5. Perform stretches to relieve tension in the neck, arm, back, and shoulders during the breaks.

32 │ About your monitor

Page 33

• Ensure that the monitor screen is at eye level or slightly lower when you are sitting in front of the monitor.

• Adjust the tilt of the monitor, its contrast, and brightness settings.

• Adjust the ambient lighting around you (such as overhead lights, desk lamps, and the curtains or blinds on nearby windows) to minimize reflections and glare on the monitor screen.

• Use a chair that provides good lower-back support.

• Keep your forearms horizontal with your wrists in a neutral, comfortable position while using the keyboard or mouse.

• Always leave space to rest your hands while using the keyboard or mouse.

• Let your upper arms rest naturally on both sides.

• Ensure that your feet are resting flat on the floor.

• When sitting, ensure that the weight of your legs is on your feet and not on the front portion of your seat. Adjust your chair’s height or use a footrest if necessary to maintain a proper posture.

• Vary your work activities. Try to organize your work so that you do not have to sit and work for extended periods of time. Try to stand or get up and walk around at regular intervals.

• Keep the area under your desk clear of obstructions and cables or power cords that may interfere with comfortable seating or present a potential trip hazard.

Monitor screen at or below eye level

Wrists relaxed and at

Monitor and keyboard positioned directly in front of the user

Feet at on the oor

About your monitor │ 33

Page 34

Handling and moving your display

To ensure that the monitor is handled safely when lifting or moving it, observe the following guidelines:

• Before moving or lifting the monitor, turn off your computer and the monitor.

• Disconnect all cables from the monitor.

• Place the monitor in the original box with the original packing materials.

• Hold the bottom edge and the side of the monitor firmly without applying excessive pressure when lifting or moving the monitor.

• When lifting or moving the monitor, ensure that the screen is facing away from you. Do not press on the display area to avoid any scratches or damage.

• When transporting the monitor, avoid any sudden shock or vibration to it.

• When lifting or moving the monitor, do not turn the monitor upside down while holding the stand base or stand riser. It may result in accidental damage to the monitor or cause personal injury.

34 │ About your monitor

Page 35

Maintenance guidelines

Cleaning your monitor

WARNING: Before cleaning the monitor, unplug the monitor power

cable from the electrical outlet.

CAUTION: Read and follow the Safety instructions before cleaning the

monitor.

WARNING: Before cleaning the monitor, unplug the monitor power

cable from the electrical outlet.

For best practices, follow the instructions in the list below when unpacking, cleaning, or handling your monitor:

• To clean the Dell monitor screen, lightly dampen a soft, clean cloth with water. If possible, use a special screen-cleaning tissue or solution suitable for the Dell monitor screen.

CAUTION: Do not use detergents or other chemicals such as benzene,

thinner, ammonia, abrasive cleaners, or compressed air.

CAUTION: Using chemicals for cleaning may cause changes in the

appearance of the monitor, such as color fading, milky film on the monitor, deformation, uneven dark shade, and peeling of screen area.

WARNING: Do not spray the cleaning solution or even water directly on

the surface of the monitor. Doing so will allow liquids to accumulate at the bottom of the display panel and corrode the electronics resulting in permanent damage. Instead, apply the cleaning solution or water to a soft cloth and then clean the monitor.

About your monitor │ 35

Page 36

NOTE: Monitor damage due to improper cleaning methods and the use of benzene, thinner, ammonia, abrasive cleaners, alcohol, compressed air, detergent of any kind will lead to a Customer Induced Damage (CID). CID is not covered under the standard Dell warranty.

• If you notice white powder when you unpack your monitor, wipe it off with a cloth.

• Handle your monitor with care as a dark-colored monitor may get scratched and show white scuff marks more than a light-colored monitor.

• To help maintain the best image quality on your monitor, use a dynamically changing screen saver and turn off your monitor when not in use.

36 │ About your monitor

Page 37

Setting up the monitor

Attaching the stand

NOTE: The stand is not installed at the factory when shipped.

NOTE: The following instructions are applicable only for the stand that

was shipped with your monitor. If you are attaching a stand that you purchased from any other source, follow the setup instructions that were included with the stand.

To attach the monitor stand:

1. Follow the instructions on the aps of carton to remove the stand from the top cushion that secures it.

2. Remove the stand base and stand riser from the packaging cushion.

NOTE: The graphics are used for the purpose of illustration only. The

appearance of the package cushion may vary.

3. Insert the stand base blocks fully into the stand slot.

4. Lift the screw handle and turn the screw clockwise.

5. After fully tightening the screw, fold the screw handle flat within the recess.

Setting up the monitor │ 37

Page 38

6. Lift the cover, as shown, to access the VESA area for stand assembly.

NOTE: Before attaching the stand assembly to the display, ensure that

the front plate flap is opened to allow space for assembly.

7. Attach the stand assembly to the display.

a. Fit the two tabs on the upper part of the stand to the groove on the back of the display. b. Press the stand down till it snaps into place.

38 │ Setting up the monitor

Page 39

8. Hold the stand riser and lift the monitor carefully, then place it on a flat surface.

NOTE: Lift the monitor carefully to prevent it from slipping or falling.

9. Remove the cover from the monitor.

Setting up the monitor │ 39

Page 40

Connecting your monitor

WARNING: Before you begin any of the procedures in this section,

follow the Safety instructions.

NOTE: Dell monitors are designed to work optimally with Dell

supplied inbox cables. Dell does not guarantee the video quality and performance if non-Dell cables are used.

NOTE: Route the cables through the cable-management slot before

connecting them.

NOTE: Do not connect all cables to the computer at the same time.

NOTE: The images are for the purpose of illustration only. The

appearance of the computer may vary.

To connect your monitor to the computer:

1. Turn off your computer and disconnect the power cable.

2. Route the power cable through the cable-management slot on the stand and

then connect it to the monitor.

3. Connect the DisplayPort, HDMI, USB-C (C-C), or USB-C (C-A) cable from your monitor to the computer.

40 │ Setting up the monitor

Page 41

Connecting the DisplayPort (DisplayPort to DisplayPort) cable

Connecting the USB-C (C-A) cable

USB-A

Connecting the USB-C (C-C) cable

NOTE: Use the USB-C (C-C) cable shipped with monitor only.

• This port supports DisplayPort Alternate Mode (DP1.4 standard only).

• The USB-C power delivery compliant port (PD Version 3.0) delivers up to 90 W of power.

• If your notebook requires more than 90 W to operate and the battery is drained, it may not be powered up or charged with the USB PD port of this monitor.

Setting up the monitor │ 41

Page 42

Connecting the HDMI cable (optional)

Connecting the monitor for DP Multi-Stream Transport (MST) function

NOTE: This monitor supports the DP MST feature. To make use of this

feature, your PC Graphics Card must be certified to DP1.4 with MST option.

NOTE: Remove the rubber plug when using DP out connector.

Connecting the monitor for USB-C Multi-Stream Transport (MST) function

NOTE: The maximum number of supported monitors via MST is

subjected to the bandwidth of the USB-C source.

NOTE: Remove the rubber plug when using the DP out connector.

42 │ Setting up the monitor

Page 43

Connecting the RJ45 cable (optional)

NOTE: The RJ45 cable is not an in-box standard accessory.

Setting up the monitor │ 43

Page 44

Dell Power Button Sync (DPBS)

Your monitor is designed with Dell Power Button Sync (DPBS) feature to allow you to control PC system power state from the monitor power button. This feature is only supported with Dell platform which has built-in DPBS function, and is only supported over USB-C interface.

To make sure the DPBS function works for the first time, perform the following steps on the DPBS supported platform in the Control Panel first.

NOTE: DPBS only supports the USB-C upstream port.

Go to Control Panel.

44 │ Setting up the monitor

Page 45

Select Hardware and Sound, followed by Power Options.

Go to System Settings.

Setting up the monitor │ 45

Page 46

In the drop-down menu of When I press the power button, there are a few

options for selection, namely Do nothing/Sleep/Hibernate/Shut down. You can select Sleep/Hibernate/Shut down.

NOTE: Do not select “Do nothing”, otherwise the monitor power

button will not be able to sync with PC system power state.

46 │ Setting up the monitor

Page 47

Connecting the monitor for DPBS for the first time

For the first time setting up the DPBS function:

Make sure both the PC and the monitor are OFF.

Press the monitor power button to turn ON the monitor.

Connect the USB-C cable from the PC to the monitor.

Both the monitor and PC will turn ON normally except Dell Optiplex

7090/3090 Ultra platform.

When you connect the Dell Optiplex 7090/3090 Ultra platform, you may

see both the monitor and PC will turn ON momentarily. Wait for a while (approximately 6 seconds) and both the PC and monitor will turn OFF. When you press either the monitor power button or PC power button, both the PC and monitor will turn ON. The PC system power state is in sync with the monitor power button.

NOTE: When the monitor and PC are both at power OFF state for the

first time, it is recommended that you turn ON the monitor first, then connect the USB-C cable from the PC to the monitor.

NOTE: You can power the Dell PC* Ultra platform using its DC adaptor

jack. Alternatively, you can power the Dell PC* Ultra platform using the monitor’s USB-C cable via Power Delivery (PD); please set USB-C Charging 90W to On in Off Mode.

*Ensure to check the Dell PC for DPBS supportability.

Setting up the monitor │ 47

Page 48

Using DPBS function Waking on the USB-C cable

When you connect the USB-C cable, the Monitor/PC state is as follows:

* Not all Dell PC systems support to wake

up the platform via the monitor.

* After connect the USB-C cable, tap on

Keyboard or moving the mouse for the system to continue its boot up process when necessary.

When you press the monitor power button or PC power button, the Monitor/PC state is as follows:

48 │ Setting up the monitor

Page 49

• When the monitor and the PC power state are both ON, press and hold the monitor power button for 4 seconds, the screen prompt will ask if you would

like to shut down the PC.

• When the monitor and the PC power state are both ON, press and hold the

monitor power button for 10 seconds, the PC will shut down.

Setting up the monitor │ 49

Page 50

Connecting the monitor for USB-C Multi-Stream Transport (MST) function

A PC is connected to two monitors in an initial OFF power state, and the PC system power state is in sync with Monitor 1 power button. When you press Monitor 1 or PC power button, both Monitor 1 and PC turns ON. Meanwhile, Monitor 2 will remain OFF. You need to manually press the power button on Monitor 2 to turn it ON.

Similarly, a PC is connected to two monitors in an initial ON power state, and the PC system power state is in sync with Monitor 1 power button. When you press Monitor 1 or PC power button, both Monitor 1 and PC turns OFF. Meanwhile, Monitor 2 will be in Standby mode. You need to manually press the power button on Monitor 2 to turn it OFF.

50 │ Setting up the monitor

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Connecting the monitor for USB-C

The Dell PC* Ultra platform has two USB-C ports, so both Monitor 1 and Monitor 2 power state can sync with the PC.

When the PC and two monitors are in an initial ON power state, pressing the power button on Monitor 1 or Monitor 2 will turn OFF the PC, Monitor 1, and Monitor 2.

*Ensure to check the Dell PC for DPBS supportability.

NOTE: DPBS only supports the USB-C upstream port.

Setting up the monitor │ 51

Page 52

Ensure to set USB-C Charging 90W to On in Off Mode. When the PC and two monitors are in an initial OFF power state, pressing the power button on Monitor 1 or Monitor 2 will turn ON the PC, Monitor 1, and Monitor 2.

52 │ Setting up the monitor

Page 53

Organizing cables

After attaching all necessary cables to your monitor and computer, (See Connecting

your monitor for cable attachment,) organize all cables as shown above.

Securing your monitor using Kensington lock (optional)

The security lock slot is located at the bottom of the monitor. (see Security lock

slot). Secure your monitor to a table using the Kensington security lock.

For more information on using the Kensington lock (sold separately), see the documentation that is shipped with the lock.

NOTE: The image is for the purpose of illustration only. The appearance

of the lock may vary.

Setting up the monitor │ 53

Page 54

Removing the monitor stand

NOTE: To prevent scratches on the LCD screen when removing the

stand, ensure that the monitor is placed on a soft surface and handle it carefully.

NOTE: The following steps are specifically for removing the stand that

is shipped with your monitor. If you are removing a stand that you purchased from any other source, follow the setup instructions that are included with the stand.

To remove the stand:

1. Place the monitor on a soft cloth or cushion.

2. Press and hold the stand release button.

3. Lift the stand up and away from the monitor.

54 │ Setting up the monitor

Page 55

VESA wall mounting (optional)

DELL P2723DE

Flat Panel Monitor /Monitor Plano Panel /Moniteur écran plat /液晶顯示器

DELL P2723DE

Flat Panel Monitor /Monitor Plano Panel /Moniteur écran plat /液晶顯示器 Model No. /Modelo /N°de modelo /型號/모델명/モデル番号: P2723DEc

정격입력/Entrada de energía:100-240V 50/60Hz, 2A

輸入電源:交流電壓100-240伏特,2安培,50/60赫茲

The equipment must be connected to an earthed mains socket-outlet.

(1) this device may not cause harmful interference, and

XXXXXX-XXXX

R-R-E2K-P2723DEc

신청인:DELL INC. 제조자:L&T Display Technology(Fujian)Ltd.(for Korea)

080-200-3800

デル・テクノロジーズ

入力:100V, 2 A, 50/60 Hz

Q40G027N-700-XXA

DELL P2723DE

液晶显示器型号:P2723DE 输入电源:

100-240V 50/60Hz,2A

中国制造

Date of Mfg/生产日期/生產日期: December. 2021

MAC address:XXXXXXXXXXXX

SVC Tag: 1234567 Express Service Code: 123 456 789 0

XXXXXXXX

XXXXXX-XX

R33037 RoHS

XXXXX

S/N: CN-0NJ5MJTV200-1C1-001LA00

Q40G027N-700-XXA

(Screw dimension: M4 x 10 mm).

See the documentation that shipped with the VESA-compatible wall mounting kit.

1. Place the display on a soft cloth or cushion at the edge of the desk.

2. Remove the stand. See Removing the monitor stand.

3. Remove the four screws that secure the display back cover.

4. Install the mounting bracket from the wall mounting kit to the display.

5. To mount the monitor on the wall, see the documentation that shipped with the

wall mounting kit.

NOTE: For use only with UL or CSA or GS-listed wall mount bracket

with minimum weight/load bearing capacity of 15.68 kg (P2423DE) /

20.28 kg (P2723DE).

Model No. /Modelo /N°de modelo /型號/모델명/モデル番号: P2723DEc

정격입력/Entrada de energía:100-240V 50/60Hz, 2A

輸入電源:交流電壓100-240伏特,2安培,50/60赫茲

The equipment must be connected to an earthed mains socket-outlet.

(1) this device may not cause harmful interference, and

XXXXXX-XX

デル・テクノロジーズ

入力:100V, 2 A, 50/60 Hz

XXXXXX-XXXX

R-R-E2K-P2723DEc

신청인:DELL INC. 제조자:L&T Display Technology(Fujian)Ltd.(for Korea)

080-200-3800

Q40G027N-700-XXA

R33037 RoHS

XXXXX

XXXXXXXX

Setting up the monitor │ 55

Page 56

Operating the monitor

Power on the monitor

Press the Power button to turn On the monitor.

Using the joystick control

Use the joystick control on the rear of the monitor to make On-Screen Display (OSD) adjustments.

Press the joystick to launch the Menu Launcher.

Move the joystick up/down/left/right to toggle between options.

Press the joystick again to confirm the selection.

56 │ Operating the monitor

Page 57

Using the On-Screen Display (OSD) menu

Accessing the Menu Launcher

When you toggle or press the joystick, the Menu Launcher appears to let you access the OSD main menu and shortcut functions.

To select a function, move the joystick.

The following table describes the Menu Launcher functions:

Joystick Description

Shortcut key/ Input

Source

Shortcut key/ Preset

Modes

Shortcut key/

Brightness/Contrast

To choose an input source from the list of video signals that may be connected to your monitor.

To choose a preferred color mode from the list of preset modes.

To access the adjustment sliders of brightness and contrast.

To launch the On-Screen Display (OSD) main menu. See Operating the monitor.

To exit the Menu Launcher.

Operating the monitor │ 57

Page 58

Using the navigation keys

When the OSD main menu is active, move the joystick to configure the settings, following the navigation keys displayed below the OSD.

Joystick Description

Down

Left

Right

Use the Up direction to adjust (increase ranges) items in the OSD menu.

Use the Down direction to adjust (decrease ranges) items in the OSD menu.

For all first level in the Menu list, Left arrow will exit/ close the OSD menu.

For all other levels except first level in the Menu list, Right arrow will go to the next level.

Press the joystick to confirm your selection.

58 │ Operating the monitor

Page 59

Accessing the menu system

NOTE: If you change the settings and then either proceed to another

menu or exit the OSD menu, the monitor automatically saves those changes. The changes are also saved if you change the settings and then wait for the OSD menu to disappear.

Select the icon to launch the OSD and display the main menu.

2X Monitor

Brightness/Contrast

Input Source

Color

Display

Personalize

Others

Press the and directions to move between the setting options. As you

75% 75%

Exit

move from one icon to another, the option is highlighted.

Press the or directions once to activate the highlighted option.

NOTE: NOTE: The directional buttons (and the OK button) displayed

may differ according to the menu you’ve selected. Use available buttons to make your selection.

Press and directions to select the desired parameter.

Press and then use the and directions, ccording to the indicators on

the menu, to make your changes.

Select the to return to the main menu.

Operating the monitor │ 59

Page 60

Icon Menu and

Submenus

Brightness/

Contrast

Brightness Brightness adjusts the luminance of the backlight.

Contrast Adjust the Brightness first, and then adjust the

Description

Use this menu to activate Brightness/Contrast adjustment.

2X Monitor

Brightness/Contrast

Input Source

Color

Display

Personalize

Others

75% 75%

Press the direction to increase the brightness and

press the direction to decrease the brightness (min. 0 / max. 100).

Contrast only if further adjustment is necessary.

Press the direction to increase the contrast and press the direction to decrease the contrast (min. 0 / max. 100).

The Contrast function adjusts the degree of difference between darkness and lightness on the monitor screen.

Exit

60 │ Operating the monitor

Page 61

Input Source Selects between the different video signals that may be

connected to your monitor.

2X Monitor

Brightness/Contrast

Input Source

Color

Display

Personalize

Others

USB-C 90W

HDMI

Auto Select

Auto Select for USB-C

Rename Inputs

Reset Input Source

Prompt for Multiple Inputs

USB-C 90W

USB-C 90W Select the USB-C 90W input when you are using

the USB-C connector. Press the joystick to confirm the selection.

DP Select the DP input when you are using the DisplayPort

(DP) connector. Press the joystick to confirm the selection.

HDMI Select the HDMI input when you are using the HDMI

connector. Press the joystick to confirm the selection.

Auto Select Allows you to scan for available input sources. The

default is On.

Auto Select for

USB-C

Allows you to set Auto Select for USB-C to:

• Prompt for Multiple Inputs: Always displays the “Switch to USB-C Video Input” message for you to choose whether to switch or not.

• Yes: Always switches to USB-C video input (without asking) when the USB-C (C-C) cable is connected.

• No: Never automatically switches to USB-C video input when the USB-C (C-C) cable is connected.

Press the joystick to confirm the selection.

NOTE: The option is available only when Auto

Select is on.

Exit

Operating the monitor │ 61

Page 62

Rename Inputs Allows you to specify a preset input name for the

selected input source. The preset options are PC, PC 1, PC 2, Laptop, Laptop 1, and Laptop 2. The default setting is Off.

NOTE: When you perform a rename for the

USB-C input, the wattage value remains after the specified option, e.g., PC 1 90W.

NOTE: It is not applicable for the input names

shown in the warning messages and Display Info.

Reset Input

Source

Resets your monitor input settings to the factory settings.

Color Adjusts the color setting mode.

2X Monitor

Brightness/Contrast

Input Source

Color

Display

Personalize

Others

Preset Modes

Input Color Format

Reset Color

Standard

RGB

Exit

62 │ Operating the monitor

Page 63

Preset Modes Allows you to choose from the list of preset color

modes. Press the joystick to confirm the selection.

2X Monitor

Brightness/Contrast

Input Source

Color

Display

Personalize

Others

Preset Modes

Input Color Format

Hue

Saturation

Reset Color

Standard

Movie

Game

Warm

Cool

Custom Cool

• Standard: Loads the monitor's default color settings. This is the default preset mode.

• Movie: Loads color settings ideal for movies.

• Game: Loads color settings ideal for most gaming

applications.

• Warm: Increases the color temperature. The screen appears warmer with a red/yellow tint.

• Cool: Presents colors at higher color temperatures. The screen appears cooler with a blue tint.

• Custom Color: Allows you to manually adjust the color settings. Move the joystick to adjust the R/G/B color values and create your own preset color mode.

Exit

Operating the monitor │ 63

Page 64

Input Color

Brightness/Contrast

Input Source

2X Monitor

Color

Display

Personalize

Others

Exit

Preset Modes

RGB

YCbCr

Input Color Format

Hue

Saturation

Reset Color

Format

Allows you to set the video input mode to:

• RGB: Select this option if your monitor is connected to a computer or a media player that supports RGB output.

• YCbCr: Select this option if your media player supports only YCbCr output.

Hue This feature can shift the color of the video image to

green or purple. This is used to adjust the desired flesh

tone color. Use or to adjust the hue from 0 to

100.

Press to increase the green shade of the video image.

Press to increase the purple shade of the video image.

64 │ Operating the monitor

NOTE: Hue adjustment is available only when

you select Movie or Game preset mode.

Page 65

Saturation This feature can adjust the color saturation of the video

image. Use or to adjust the saturation from 0 to

100.

Press to increase the monochrome appearance of the video image.

Press to increase the colorful appearance of the video image.

NOTE: Saturation adjustment is available only

when you select Movie or Game preset mode.

Reset Color

Resets your monitor’s color settings to the factory settings.

Operating the monitor │ 65

Page 66

Display Use the display to adjust image.

Brightness/Contrast

Input Source

2X Monitor

Color

Display

Personalize

Others

Exit

Aspect Ratio

16:9

Normal

o

High Data Speed

Sharpness

Response Time

MST

USB-C Prioritization

Reset Display

Aspect Ratio Adjusts the image ratio to 16:9, 4:3 or 5:4.

Sharpness This feature can make the image look sharper or softer.

Move the joystick to adjust the sharpness level from ‘0’ to ‘100’.

Response Time Allows you to set the Response Time to Normal or

Fast.

MST DisplayPort Multi Stream Transport. The default setting

is Off. To enable MST (DP out), select On.

NOTE: When the DisplayPort/USB-C cable

and the DP downstream cable are connected, the OSD will set MST to On automatically. This action will only be done once after Factory Reset or Reset Display is selected.

USB-C

Prioritization

Allows you to specify the priority to transfer the data with high resolution (High Resolution) or high speed (High Data Speed) when using the USB-C port/ DisplayPort.

Reset Display Resets all display settings to the factory preset values.

66 │ Operating the monitor

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Menu Select this option to adjust the settings of the OSD,

such as, the languages of the OSD, the amount of time the menu remains on screen and so on.

2X Monitor

Brightness/Contrast

Input Source

Color

Display

Personalize

Others

Language English

Rotation

Transparency

Timer

Lock

Reset Menu

Select

20s

Disable

Language Sets the OSD display to one of the eight languages

(English, Spanish, French, German, Brazilian Portuguese, Russian, Simplified Chinese, or Japanese).

Rotation Press the joystick to rotate the OSD and the screen by

0/90/180/270 degrees.

You can adjust the menu according to your display rotation.

Transparency Select this option to change the menu transparency by

moving the joystick (min. 0 / max. 100).

Exit

Timer Sets the length of time the OSD will remain active after

the last time you pressed a button.

Move the joystick to adjust the slider in 1 second increments, from 5 to 60 seconds.

Lock Controls user access to adjustments. User can select

one of the following: Menu Buttons, Power Button, Menu + Power Buttons, Disable.

Reset Menu Resets all OSD settings to the factory preset values.

Operating the monitor │ 67

Page 68

Personalize

2X Monitor

Brightness/Contrast

Input Source

Color

Display

Personalize

Others

Shortcut Key 1 Input Source

Shortcut Key 2

Shortcut Key 3

Power Button LED

USB-C Charging 90W

Other USB Charging

Fast Wakeup

Reset Personalization

Preset Modes

Brightness/Contrast

On in On Mode

O in O Mode

O in Standby Mode

O

Shortcut Key 1 Allows you to choose a feature from Preset Modes,

Shortcut Key 2

Brightness/Contrast, Input Source, Aspect Ratio, Rotation, or Display Info and set it as a shortcut key.

Shortcut Key 3

Power Button

LED

USB-C

Charging

90W

Allows you to set the power LED indicator On or Off to save energy.

The default setting is Off in Off Mode. Selecting On in Off Mode may automatically charge your notebook or mobile devices through the USB-C cable even when the monitor is in off mode.

Other USB

Charging

Allows you to enable or disable USB Type-A (Downstream Ports) charging function during monitor standby mode.

Fast Wakeup The default setting is Off. Selecting On may prevent

the monitor from going into Standby mode.

Pressing or move the joystick (except the power button) on the rear panel of the monitor may also wake up the monitor after it goes into Standby mode.

Reset

Personalization

Resets all settings under the Personalize menu to the factory preset values.

Exit

68 │ Operating the monitor

Page 69

Others Select this option to adjust the OSD settings, such as

the DDC/CI, LCD conditioning, and so on.

2X Monitor

Brightness/Contrast

Input Source

Color

Display

Personalize

Others

Display Info

DDC/CI

LCD Conditioning

Firmware

Service Tag

Self-Diagnostic

Reset Others

Factory Reset

Select

O

XXXXXX

XXXXXXX

Select

ENERGY STAR

Display Info Displays the monitor’s current settings.

DDC/CI DDC/CI (Display Data Channel/Command Interface)

allows you to adjust the monitor settings using software on your computer. You can disable this feature by selecting Off.

Enable this feature for best user experience and optimum performance of your monitor.

2X Monitor

Brightness/Contrast

Input Source

Color

Display

Personalize

Others

Display Info

DDC/CI

LCD Conditioning

Firmware

Service Tag

Self-Diagnostic

Reset Others

Factory Reset

O

Exit

Operating the monitor │ 69

Page 70

LCD

Conditioning

Helps reduce minor cases of image retention. Depending on the degree of image retention, the program may take some time to run. You can enable this feature by selecting On.

2X Monitor

Brightness/Contrast

Input Source

Color

Display

Personalize

Others

Display Info

DDC/CI

LCD Conditioning

Firmware

Service Tag

Self-Diagnostic

Reset Others

Factory Reset

O

Firmware Displays the rmware version of your monitor.

Service Tag Displays the service tag of your monitor. This string is

required when you look for phone support, check your warranty status, update drivers on Dell's website, etc.

Self-Diagnostic Allows you to check if your monitor is functioning

properly.

Reset Others Resets all settings under the Others menu to the

factory preset values.

Factory Reset Restore all preset values to the factory default settings.

These are also the settings for ENERGY STAR® tests.

2X Monitor

Brightness/Contrast

Input Source

Color

Display

Personalize

Others

Display Info

DDC/CI

LCD Conditioning

Firmware

Service Tag

Self-Diagnostic

Reset Others

Factory Reset

Select

O

XXXXXX

XXXXXXX

Select

ENERGY STAR

Exit

70 │ Operating the monitor

Page 71

Menu and Power button lock

Prevents users to access or change OSD menu settings on the display.

By default, the Menu and Power button lock setting is disabled.

To access the lock menu, press and hold the Up or Down or Left or Right direction for four seconds. A lock menu appears at the bottom right corner of the display.

NOTE: The lock menu can be accessed using this method when the

Menu and Power buttons are in unlocked state.

Select option:

To access the unlock menu, press and hold the Up or Down or Left or Right direction for four seconds. An unlock menu appears at the bottom right corner of the display.

NOTE: The unlock menu can be accessed when the Menu and Power

buttons are in locked state.

Operating the monitor │ 71

Page 72

Select option:

There are three lock options.

Menu Description

1 Menu Buttons When Menu Buttons is selected, the OSD menu

settings cannot be changed. All buttons are locked except Power button.

2 Power Button When Power Button is selected, the display cannot

be turned off using the Power button.

3 Menu + Power

Buttons

When Menu + Power Buttons is selected, the OSD menu settings cannot be changed and the Power button is locked.

NOTE: To access the Lock or Unlock menu – Press and hold the Up or

Down or Left or Right direction for four seconds.

In the following scenarios, the icon appears at the center of the display:

• When Up or Down or Left or Right direction are pressed. This indicates the OSD menu buttons are in lock state.

• When the Power button is pressed. This indicates the Power button is in lock state.

• When Up or Down or Left or Right direction or Power button are pressed. This indicates OSD menu buttons and the Power button is in lock state.

Unlocking the OSD menu and Power buttons：

1. Press and hold the Up or Down or Left or Right direction for four seconds.

The unlock menu appears.

2. Select the unlock icon to unlock the buttons on the display.

72 │ Operating the monitor

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OSD warning messages

When the monitor does not support a particular resolution mode, you will see the following message:

2560x1440,

This means that the monitor cannot synchronize with the signal that it is receiving from the computer. See monitor specifications for the Horizontal and Vertical frequency ranges addressable by this monitor. Recommended mode is 2560 x

1440. You will see the following message before the DDC/CI function is disabled:

Operating the monitor │ 73

Page 74

When you adjust the Brightness level above the default level for the first time, the following message appears:

NOTE: If you select Yes, the message will not appear the next time you

change the Brightness setting.

When you change the default setting of power saving features for the first time, such as USB-C Charging 90W, Other USB Charging, or Fast Wakeup, the following message appears:

NOTE: If you select Yes for either of the features mentioned above,

the message will not appear the next time you change the settings of these features. When you perform a factory reset, the message will appear again.

74 │ Operating the monitor

Page 75

When the monitor goes into Standby mode, the following message appears:

Activate the computer and wake up the monitor to gain access to the OSD. The OSD functions only in the normal operation mode. If you press the joystick during the Standby mode, the following message will appear depending on the selected input:

Activate the computer and the monitor to gain access to the OSD.

NOTE: The message may be slightly dierent according to the

connected input signal.

If either USB-C, DisplayPort, or HDMI input is selected and the corresponding cable is not connected, the following message will appear:

No USB-C Cable

The display will go into Standby mode in 4 minutes.

www.dell.com/P2X23DE

Operating the monitor │ 75

Page 76

No DP Cable

The display will go into Standby mode in 4 minutes.

www.dell.com/P2X23DE

No HDMI Cable

The display will go into Standby mode in 4 minutes.

www.dell.com/P2X23DE

NOTE: The message may be slightly dierent according to the

connected input signal.

When the monitor is under DP/HDMI input and a USB-C (C-C) cable is connected to a notebook that supports DP Alternate Mode, if Auto Select for USB-C is enabled, the following message appears:

76 │ Operating the monitor

Page 77

You will see the following message before the Lock function is activated:

NOTE: The message may be slightly dierent according to the selected

settings.

When Factory Reset is selected, the following message appears:

Operating the monitor │ 77

Page 78

When Yes is selected, the following message appears.

2X Monitor

Select ‘Yes’ to enable the following function(s):

Always on USB-C Charging

Other USB Charging

When ‘Yes’ is selected, power consumption will

increase. When ‘No’ is selected, it will comply

with ENERGY STAR requirements.

Individual settings of the functions can be

changed in the Menu.

See Troubleshooting for more information.

78 │ Operating the monitor

Yes

Page 79

Setting the maximum resolution

NOTE: The steps may vary slightly depending on the version of

Windows you have.

To set the maximum resolution for the monitor:

In Windows 8.1:

1. For Windows 8.1, select the Desktop tile to switch toclassic desktop.

2. Right-click on the desktop and click Screen Resolution.

3. If you have more than one monitor connected, ensure that you select P2423DE/ P2723DE.

4. Click the Screen Resolution dropdown list and select 2560 x 1440.

5. Click OK.

In Windows 10 and Windows 11:

1. Right-click on the desktop and click Display settings. If you have more than one monitor connected, ensure to select P2423DE/

2. P2723DE.

Click the Display Resolution dropdown list and select 2560 x 1440.

Click Keep changes.

If you do not see 2560 x 1440 as an option, you must update your graphics driver to the latest version. Depending on your computer, complete one of the following procedures:

If you have a Dell desktop or laptop:

• Go to https://www.dell.com/support, enter your service tag, and download the latest driver for your graphics card.

If you are using a non-Dell computer (laptop or desktop):

• Go to the support site for your computer and download the latest graphic drivers.

• Go to your graphics card website and download the latest graphic drivers.

Operating the monitor │ 79

Page 80

Using the tilt, swivel, and vertical extension

NOTE: The following instructions are applicable only for attaching

the stand that was shipped with your monitor. If you are attaching a stand that you purchased from any other source, follow the set up instructions that were included with the stand.

Tilt, swivel

With the stand attached to the monitor, you can tilt and swivel the monitor for the most comfortable viewing angle.

NOTE: The stand is not installed at the factory when shipped.

Vertical Extension

NOTE: The stand extends vertically up to 150 mm. The figure below

illustrates how to extend the stand vertically.

80 │ Operating the monitor

Page 81

Rotating the monitor

Before you rotate the monitor, your monitor should be fully vertically extended (Vertical Extension) and fully tilted up to avoid hitting the bottom edge of the monitor.

Rotate clockwise

Operating the monitor │ 81

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Rotate counterclockwise

NOTE: To use the Display Rotation function (Landscape versus

Portrait view) with your Dell computer, you require an updated graphics driver that is not included with this monitor. To download the graphics driver, go to www.dell.com/support and see the Download section for Video Drivers for latest driver updates.

NOTE: When in the Portrait View Mode, you may experience

performance degradation in graphic-intensive applications (3D Gaming and etc.).

82 │ Operating the monitor

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Adjusting the rotation display settings of your system

After you have rotated your monitor, you need to complete the procedure below to adjust the Rotation Display Settings of your system.

NOTE: If you are using the monitor with a non-Dell computer, you need

to go to the graphics driver website or your computer manufacturer website for information on rotating the 'contents' on your display.

To adjust the Rotation Display Settings:

1. Right-click on the desktop and click Properties.

2. Select the Settings tab and click Advanced.

3. If you have an ATI graphics card, select the Rotation tab and set the preferred

rotation.

4. If you have an NVIDIA graphics card, click the NVIDIA tab, in the left-hand column select NVRotate, and then select the preferred rotation.

5. If you have an Intel® graphics card, select the Intel graphics tab, click Graphic Properties, select the Rotation tab, and then set the preferred rotation.

NOTE: If you do not see the rotation option or it is not working

correctly, go to www.dell.com/support and download the latest driver for your graphics card.

Operating the monitor │ 83

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Troubleshooting

WARNING: Before you begin any of the procedures in this section,

follow the Safety instructions.

Self-Test

Your monitor provides a self-test feature that allows you to check if your monitor is functioning properly. If your monitor and computer are properly connected but the monitor screen remains dark, run the monitor self-test by performing the following steps:

1. Turn off both your computer and the monitor.

2. Disconnect all video cables from the monitor. This way, the computer doesn’t

have to be involved.

3. Turn on the monitor. If the monitor cannot sense a video signal and is working correctly, the following message will appear:

No USB-C Cable

The display will go into Standby mode in 4 minutes.

www.dell.com/P2X23DE

84 │ Troubleshooting

No DP Cable

The display will go into Standby mode in 4 minutes.

www.dell.com/P2X23DE

Page 85

No HDMI Cable

The display will go into Standby mode in 4 minutes.

www.dell.com/P2X23DE

NOTE: The message may be slightly different according to the

connected input signal.

NOTE: While in self-test mode, the power LED remains white.

4. This box also appears during normal system operation, if the video cable

becomes disconnected or damaged.

5. Turn Off your monitor and reconnect the video cable; then turn On both your computer and the monitor.

If your monitor screen remains blank after you use the previous procedure, check your video controller and computer, because your monitor is functioning properly.

Built-in diagnostics

Your monitor has a built-in diagnostic tool that helps you determine if any screen abnormality you experience is an inherent problem with your monitor, or with your computer and video card.

To run the built-in diagnostics:

1. Ensure that the screen is clean (no dust particles on the surface of the screen).

Press the Joystick buttton to launch the OSD Menu Launcher and move the

Joystick up to select “ ” to open Main Menu.

odes

Troubleshooting │ 85

Page 86

Move the Joystick to select Others > Self-Diagnostic to initiate the self-

diagnostic process.

2X Monitor

Brightness/Contrast

Input Source

Color

Display

Personalize

Others

When initiated, a gray screen apppears. Inspect the screen for abnormalities.

Display Info

DDC/CI

LCD Conditioning

Firmware

Service Tag

Self-Diagnostic

Reset Others

Factory Reset

Select

Exit

5. Toggle the Joystick. The color of the screen changes to red. Inspect the screen for abnormalities.

6. Repeat step 5 to inspect the display in green, blue, black, white and text screens.

The test is complete when the text screen appears. To exit, toggle the

Joystick again.

If you do not detect any screen abnormalities upon using the BID tool, the monitor is functioning properly. Please check the video card and computer.

86 │ Troubleshooting

Page 87

Common problems

The following table contains general information about common monitor problems you might encounter and the possible solutions:

Common Symptoms

No Video/Power LED off

No Video/Power LED on

Poor Focus Picture is fuzzy,

Shaky/Jittery Video

What you experience

No picture Ensure that the video cable connecting

No picture or no brightness

blurry, or ghosting

Wavy picture or fine movement

Possible Solutions

the monitor and the computer is properly connected and secure.

• Verify that the power outlet is functioning properly using any other electrical equipment.

• Ensure that the power button is pressed.

• Ensure that the correct input source is selected via the Input Source menu.

• Increase brightness and contrast controls using the OSD.

• Perform monitor self-test feature check.

• Check for bent or broken pins in the video cable connector.

• Run the built-in diagnostics.

• Ensure that the correct input source is selected via the Input Source menu.

• Eliminate video extension cables.

• Reset the monitor to Factory Settings (Factory Reset).

• Change the video resolution to the correct aspect ratio.

• Reset the monitor to Factory Settings (Factory Reset).

• Check environmental factors.

• Relocate the monitor and test in another room.

Troubleshooting │ 87

Page 88

Missing Pixels LCD screen has

spots

Stuck-on Pixels LCD screen has

bright spots

Brightness Problems

Geometric Distortion

Horizontal/ Vertical Lines

Picture too dim or too bright

Screen not centered correctly

Screen has one or more lines

• Cycle power On-Off.

• Pixel that is permanently Off is a natural defect that can occur in LCD technology.

• For more information on Dell Monitor Quality and Pixel Policy, see Dell Support site at:

www.dell.com/pixelguidelines.

• Cycle power On-Off.

• Pixel that is permanently off is a natural defect that can occur in LCD technology.

• For more information on Dell Monitor Quality and Pixel Policy, see Dell Support site at:

www.dell.com/pixelguidelines.

• Reset the monitor to Factory Settings (Factory Reset).

• Adjust brightness & contrast controls via OSD.

• Reset the monitor to Factory Settings (Factory Reset).

• Adjust horizontal & vertical controls via OSD.

• Reset the monitor to Factory Settings (Factory Reset).

• Perform monitor self-test feature check and determine if these lines are also in self-test mode.

• Check for bent or broken pins in the video cable connector.

• Run the built-in diagnostics.

88 │ Troubleshooting

Page 89

Synchronization Problems

Safety Related Issues

Intermittent Problems

Missing Color Picture missing

Wrong Color Picture color not

Screen is scrambled or appears torn

Visible signs of smoke or sparks

Monitor malfunctions on & off

color

good

• Reset the monitor to Factory Settings (Factory Reset).

• Perform monitor self-test feature check to determine if the scrambled screen appears in self-test mode.

• Check for bent or broken pins in the video cable connector.

• Restart the computer in the safe mode.

• Do not perform any troubleshooting steps.

• Contact Dell immediately.

• Ensure that the video cable connecting the monitor to the computer is connected properly and is secure.

• Reset the monitor to Factory Settings (Factory Reset).

• Perform monitor self-test feature check to determine if the intermittent problem occurs in self-test mode.

• Perform monitor self-test feature check.

• Ensure that the video cable connecting the monitor to the computer is connected properly and is secure.

• Check for bent or broken pins in the video cable connector.

• Try different Preset Modes in Color settings OSD. Adjust R/G/B value in Custom Color in Color settings OSD.

• Change the Input Color Format to RGB or YCbCr in the Color settings OSD.

• Run the built-in diagnostics.

Troubleshooting │ 89

Page 90

Image retention from a static image left on the monitor for a long period of time

Faint shadow from the static image displayed appears on the screen

Product specific problems

• Set the screen to turn off after a few minutes of screen idle time. These can be adjusted in Windows Power Options or Mac Energy Saver setting.

• Alternatively, use a dynamically changing screensaver.

Specific Symptoms

Screen image is too small

Cannot adjust the monitor with the joystick

No Input Signal when user controls are pressed

What you experience Possible Solutions

Image is centered on screen, but does not fill entire viewing area

OSD does not appear on the screen

No picture, the LED light is white

• Check the Aspect Ratio setting in the Display settings OSD.

• Reset the monitor to Factory Settings (Factory Reset).

• Turn Off the monitor, unplug the power cord, plug it back, and then turn On the monitor.

• Check whether the OSD menu is locked. If yes, move and hold the joystick up/down/left/right for 4 seconds to unlock (for more information, see Menu and

Power button lock).

• Check the signal source. Ensure the computer is not in Standby Mode by moving the mouse or pressing any key on the keyboard.

• Check if the video cable is plugged in properly. Disconnect and reconnect the video cable if necessary.

• Reset the computer or video player.

90 │ Troubleshooting

Page 91

The picture does not fill the entire screen

No video at HDMI/ DisplayPort/USB-C port

No network connection

The LAN port is not functioning

The picture cannot fill the height or width of the screen

When connected to some dongle/ docking device at the port, there is no video when unplugging/plugging the cable from the notebook

Network dropped or intermittent

OS setting or cable connection issue

• Due to different video formats (aspect ratio) of DVDs, the monitor may display in full screen.

• Run the built-in diagnostics.

• Unplug the HDMI/DisplayPort/ USB-C cable from dongle/ docking device, then plug the docking HDMI/DisplayPort/ USB-C cable to the notebook.

• Do not turn Off the monitor during network connection.

• Ensure that the latest BIOS and drivers for your computer are installed on your computer.

• Ensure that the RealTek Gigabit Ethernet Controller is installed in the Windows Device Manager.

• If your BIOS Setup has a LAN/ GBE Enabled/Disabled option, make sure it is set to Enabled.

• Ensure that the Ethernet cable is connected securely on the monitor and the hub/router/ firewall.

• Check the status LED of the Ethernet cable to confirm connectivity. Re-connect both ends of the Ethernet cable if the LED is not lit.

• First power off the computer and unplug the USB-C cable and the power cord from the monitor. Then, power on the computer and plug the power cord and the USB-C cable into the monitor.

Troubleshooting │ 91

Page 92

Universal Serial Bus (USB) specific problems

Common symptoms

USB interface is not working

USB-C port does not supply power

SuperSpeed USB 5 Gbps (USB 3.2 Gen1) interface is slow

What you experience

USB peripherals are not working

USB peripherals can not be charged

SuperSpeed USB 5 Gbps (USB 3.2 Gen1) peripherals working slowly or not working at all

Possible Solutions

• Check that your monitor is turned On.

• Reconnect the upstream cable to your computer.

• Reconnect the USB peripherals (downstream connector).

• Turn off the monitor and turn it on again.

• Reboot the computer.

• Certain USB devices such as portable hard drive require higher power source; connect the drive to the computer directly.

• Check that the connected device is compliant with the USB-C specification. The USB-C port supports USB 3.2 Gen1 and an output of 90 W.

• Check that you use the USB-C cable shipped with your monitor.

• Check that your computer is SuperSpeed USB 5 Gbps (USB 3.2 Gen1)-compatible.

• Some computers have USB 3.2, USB 2.0, and USB 1.1 ports. Ensure that the correct USB port is used.

• Reconnect the upstream cable to your computer.

• Reconnect the USB peripherals (downstream connector).

• Reboot the computer.

92 │ Troubleshooting

Page 93

Wireless USB peripherals stop working when a USB 3.2 device is plugged in

Wireless USB peripherals responding slowly or only working as the distance between itself and its receiver decreases

• Increase the distance between the USB 3.2 peripherals and the wireless USB receiver.

• Position your wireless USB receiver as close as possible to the wireless USB peripherals.

• Use a USB-extender cable to position the wireless USB receiver as far away as possible from the USB 3.2 port.

Troubleshooting │ 93

Page 94

Regulatory information

FCC notices (U.S. Only) and other regulatory information

For FCC notices and other regulatory information, see the regulatory compliance website located at www.dell.com/regulatory_compliance.

EU product database for energy label and product information sheet

P2423DE: https://eprel.ec.europa.eu/qr/1057583 P2723DE: https://eprel.ec.europa.eu/qr/1057602

Contacting Dell

To contact Dell for sales, technical support, or customer service issues, see www.

dell.com/contactdell.

NOTE: Availability varies by country and product, and some services

may not be available in your country.

NOTE: If you do not have an active Internet connection, you can find

contact information on your purchase invoice, packing slip, bill, or Dell product catalog.

94 │ Regulatory information

Dell P2423DE User’s Guide [EN]

Specifications and Main Features

Frequently Asked Questions

User Manual

Safety instructions

About your monitor

Package contents

Product features

Identifying parts and controls

Front view

Back view

Bottom view

Monitor specifications

Resolution specifications

Supported video modes

Preset display modes

Physical characteristics

Environmental characteristics

Pin assignments

DisplayPort connector (in)

DisplayPort connector (out)

HDMI connector

Universal Serial Bus (USB) interface

RJ45 port (connector side)

Plug and play capability

LCD monitor quality and pixel policy

Ergonomics

Handling and moving your display

Maintenance guidelines

Cleaning your monitor

Setting up the monitor

Attaching the stand

Connecting your monitor

Connecting the DisplayPort (DisplayPort to DisplayPort) cable

Connecting the USB-C (C-A) cable

Connecting the USB-C (C-C) cable

Connecting the HDMI cable (optional)

Connecting the monitor for DP Multi-Stream Transport (MST) function

Connecting the monitor for USB-C Multi-Stream Transport (MST) function

Connecting the RJ45 cable (optional)

Dell Power Button Sync (DPBS)

Connecting the monitor for DPBS for the first time

Connecting the monitor for USB-C Multi-Stream Transport (MST) function

Connecting the monitor for USB-C

Organizing cables

Securing your monitor using Kensington lock (optional)

Removing the monitor stand

VESA wall mounting (optional)

Operating the monitor

Power on the monitor

Using the joystick control

Using the On-Screen Display (OSD) menu

Accessing the Menu Launcher

Using the navigation keys

Accessing the menu system

Menu and Power button lock

OSD warning messages

Setting the maximum resolution

Using the tilt, swivel, and vertical extension

Tilt, swivel

Vertical Extension

Rotating the monitor

Rotate clockwise

Rotate counterclockwise

Adjusting the rotation display settings of your system

Troubleshooting

Self-Test

Built-in diagnostics

Common problems

Universal Serial Bus (USB) specific problems

Regulatory information

FCC notices (U.S. Only) and other regulatory information

EU product database for energy label and product information sheet

Contacting Dell