Dell S2718D User Guide

Dell S2718D
User’s Guide

Model: S2718D
Regulatory model: S2718Dt

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 © 2017 Dell Inc. All rights reserved. This product is protected by U.S. and international

copyright and intellectual property laws.
Dell™ and the Dell logo are trademarks of Dell Inc. in the United States and/or other jurisdictions.

All other marks and names mentioned herein may be trademarks of their respective companies.

2017 – 03 Rev. A00

Contents

About Your Monitor ..................................... 5

Package Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Product Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Identifying Parts and Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Monitor Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Plug-and-Play . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

LCD Monitor Quality and Pixel Policy. . . . . . . . . . . . . . . . . . . . . . 16

Setting Up the Monitor...................................17

Using the Tilt and Swivel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Connecting Your Monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Operating the Monitor .................................. 19

Turning on the Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Using the Front Panel Controls . . . . . . . . . . . . . . . . . . . . . . . . . 19

Using the On-Screen Display (OSD) Menu . . . . . . . . . . . . . . . . . . . 22

Troubleshooting ....................................... 34

Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Built-in Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Common Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Product Specific Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Appendix .............................................. 39

Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Contents | 3

FCC Notices (U.S. only) and Other Regulatory Information . . . . . . . . 39

Contacting Dell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Setting Up Your Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Maintenance Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

4 | Contents

About Your Monitor

Package Contents

Your monitor ships with the components shown below. Make sure that you have
received all the components and contact Dell if something is missing.

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

Somefeatures or media may not be available in certain countries.

Monitor with stand

Power cable (varies by country)

Power adapter

HDMI cable

USB Type C cable (C to C)

About Your Monitor | 5

•Drivers and documentation media

•Quick Setup Guide

•Safety,Environmental,and

Regulatory Information

Product Features

The Dell S2718D monitor has an active matrix, thinfilm transistor (TFT), liquid crystal
display (LCD), and LED backlight. The monitor features include:

• 68.47cm (27-inch) viewable area display (measured diagonally).
2560x1440 resolution with full-screen support for lower resolutions.

• Mega dynamic contrast ratio (8,000,000:1).

• Tilt and swivel adjustment capability.

• Single USB Type-C to supply power to compatible notebook while receiving video

signal and USB data.

• Plug and play capable if supported by your system.

• Optimize eye comfort with a flicker-free screen and ComfortView feature which

minimizes blue light emission.

• Adapted “High Dynamic Range” appropriate for monitor usage.

• On-screen display (OSD) adjustments for easy setup and screen optimization.

• Software and documentation media includes an information file (INF), Image-color

matching file (ICM), and product documentation.

• Dell display manager software (available on the disc shipped with the monitor).

• Energy saver feature for energy star compliance.

• Security-lock slot.

• Capability of switching from wide aspect to standard aspect ratio while maintaining

image quality.

• BFR/PVC- Reduced(Its circuit boards are made from BFR/PVC-free laminates).

• TCO-certified displays.

• RoHS Compliant

• Arsenic-free glass and mercury-free for the panel only.

• 0.5 W standby power when in the sleep mode.

• Energy gauge shows the energy level being consumed by the monitor in real time.

• Analog backlight dimming control for flicker free display.

6 | About Your Monitor

Identifying Parts and Controls

Front view

Label Description
1 Function buttons (For more information, see Operating the Monitor)
2 Power on/off button (with LED indicator)

Back and Bottom View

Label Description Use
1 DC power connector To connect the monitor power cable.
2 HDMI connector Connect your computer with HDMI cable.
3 USB Type C connector Connect your computer with USB Type C cable.
4 Security-lock slot Secures monitor with security lock

(sold separately).

About Your Monitor | 7

5 USB downstream ports Connect your USB device. You can only use this

connector after you have connected the USB
Type C cable to the computer and USB Type C
connector on the monitor.

6 Audio line-out port Connect speakers to playback audio coming

through HDMI or DP audio channels through USB
type C.
Only supports 2-channel audio.
NOTE: The audio line-out port does not support
headphones.

WARNING: Excessive sound pressure from
earphones or headphones can cause hearing
damage or loss.

7 Regulatory label,Barcode,

serial number, and Service
Tag label

Lists the regulatory approvals,Refer to this label if
you need to contact Dell for technical support.

NOTE: The location of rating label under the stand
base.

8 | About Your Monitor

Monitor Specifications

Screen type Active matrix - TFT LCD
Panel Type In-plane switching Technology
Aspect ratio
Viewable image dimensions
Diagonal
Active Area
Horizontal 569.736 mm (22.43 inches)
Vertical 335.664 mm (13.21 inches)
Area 191239.86 mm2 (296.30 inches2)
Pixel pitch 0.2331 mm x 0.2331 mm
Pixel per inch (PPI) 109
Viewing angle

Horizontal 178° (typical)
Vertical 178° (typical)
Brightness 300 cd/m² (typical)

Contrast ratio 1000 to 1 (typical)

Faceplate coating Low haze treatment of the front polarizer (3H)
Backlight White LED, EDGELIGHT system
Response Time (Gray to Gray) 6 ms (FAST mode)

Color depth 16.7 million colors
Color gamut 99% sRGB
Connectivity •1 x HDMI2.0 with HDCP2.2(combine HDMI1.4

Border width (edge of monitor to
active area)

Adjustability
Tilt

Swivel
Dell Display Manager (DDM)

Compatibility
Security Security lock slot (cable lock sold separately)

16:9

68.47 cm (27 inches)

8,000,000 to 1 (dynamic contrast on)

8 ms (NORMAL mode)

with HDCP 1.4)

•2 x USB 3.0 downstream port

•1 x Analog 2.0 audio line out (3.5mm jack)

•1x USB Type C (Alternate mode with DP1.2, USB

3.1 upstream port ,Power Delivery PD up to 45W)

7.50 mm (Top)

7.50 mm (Left/Right)

8.05 mm (Bottom)

-5° to 21°

-45° to 45°
Easy Arrange

and other key features

About Your Monitor | 9

Resolution Specifications

Horizontal scan range 30 kHz to 88 kHz (DP/HDMI1.4)

30 kHz to 140 kHz (HDMI2.0)

Vertical scan range 48 Hz to 75 Hz (DP/HDMI1.4/HDMI2.0)
Maximum preset resolution
Video input capabilities

(DP & HDMI playback)

2560 x 1440 at 60 Hz
480p,576p, 720p,1080p (DP/HDMI1.4/HDMI2.0)

2160p(HDMI2.0)

Preset Display Modes

Display Mode Horizontal

Frequency
(kHz)

720 x 400 31.5 70.0 28.3 -/+

VESA, 640 x 480 31.5 60.0 25.2 -/-

VESA, 640 x 480 37.5 75.0 31.5 -/-

VESA, 800 x 600 37.9 60.3 40.0 +/+

VESA, 800 x 600 46.9 75.0 49.5 +/+

VESA, 1024 x 768 48.4 60.0 65.0 -/-

VESA, 1024 x 768 60.0 75.0 78.8 +/+

VESA, 1152 x 864 67.5 75.0 108.0 +/+

VESA, 1280 x 1024 64.0 60.0 108.0 +/+

VESA, 1280 x 1024 80.0 75.0 135.0 +/+

VESA, 1920 x 1080 67.5 60.0 148.5 +/+

CVT, 2560 x 1440 88.8 60.0 241.5 +/-

Vertical
Frequency
(Hz)

Pixel Clock
(MHz)

Sync Polarity
(Horizontal/
Vertical)

10 | About Your Monitor

Electrical Specifications

Video input signals •Digital video signal for each dierential line

Per dierential line at 100 ohm impedance

•HDMI/USB Type C signal input support

AC/DC adapter:
Input voltage/
frequency/current

Output voltage/current Output: 19.5 VDC /6.67 A
Inrush current No function error,no damage

Brand Manufacturer Model Polarity

Dell Delta HA130PM130

Dell Chicony DA130PM130

100-240 VAC / 50 or 60 Hz ± 3 Hz / 1.8A (maximum)

Physical Characteristics

Connector type •HDMI connector

•Audio line-out

•USB Type C connector

•USB 3.0 downstream connector

Signal cable type USB Type C to Type C 1.8 M cable

HDMI 1.8 M cable

Dimensions (with stand)

Height 453.2 mm (17.84 inches)
Width 611.8 mm (24.10 inches)
Depth 180.4 mm (7.10 inches)

Dimensions (without stand)

Height 351.3 mm (13.83 inches)
Width 611.8 mm (24.10 inches)
Depth 20.7 mm (0.81 inches)

Stand dimensions

Height 265.5 mm (10.45 inches)
Width 150.0 mm (5.91 inches)
Depth

Weight

Weight with packaging 10.30 kg (22.71 lb)
Weight with stand assembly

and cables

180.4 mm (7.10 inches)

6.85 kg (15.10 lb)

About Your Monitor | 11

Environmental Characteristics

Temperature

Operating 0°C to 40°C (32°F to 104°F)
Non-operating –20°C to 60°C (–4°F to 140°F)

Humidity

Operating 10% to 80% (non-condensing)
Non-operating 5% to 90% (non-condensing)

Altitude
Operating 5,000 m (16,404 ft) (maximum)
Non-operating 12,192 m (40,000 ft) (maximum)
Thermal dissipation 119.5 BTU/hour (maximum)

102.4 BTU/hour (typical)

12 | About Your Monitor

Power Management Modes

If you have VESA’s DPM-compliant video card or software installed in your PC, the
monitor can automatically reduce its power consumption when not in use. This is
referred to as power save mode*. If the computer detects input from the keyboard,
mouse, or other input devices, the monitor automatically resumes functioning. The
following table shows the power consumption and signaling of this automatic power

saving feature.

VESA
Modes

Normal
operation

Active-off
mode

Horizontal
Sync

Vertical
Sync

Video Power Indicator Power Consumption

Active Active Active White 35 W (maximum)**

30 W (typical)

Inactive Inactive Off White

Less than 0.5 W

(Glowing)

Switch off - - - Off Less than 0.3 W

Energy Star Power Consumption

P

ON

E

TEC

23.5 W***

74.61 kWh****

The OSD operates only in the normal operation mode. If you press any button in the
active-off mode, one of the following message is displayed:

*Zero power consumption in OFF mode can only be achieved by disconnecting
the AC mains cable from the monitor.
**Maximum power consumption with maximum luminance.
***Power consumption of on mode as defined in Energy Star 7.0 version.
****Total energy consumption in kWh as defined in Energy Star 7.0 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.

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

About Your Monitor | 13

NOTE: This monitor is ENERGY STAR -compliant.

Pin Assignments

HDMI connector

Pin number 19-pin side of theconnected signal cable

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

14 | About Your Monitor

USB Type C Connector

Pin Signal Assignment Pin Signal Assignment

A1 GND B12 GND

A2 TX1+ B11 RX1+

A3 TX1- B10 RX1-

A4 VBUS B9 VBUS

A5 CC B8 SBU2

A6 D + B7 D -

A7 D - B6 D +

A8 SBU1 B5 VCONN

A9 VBUS B4 VBUS

A10 RX2- B3 TX2-

A11 RX2+ B2 TX2+

A12 GND B1 GND

About Your Monitor | 15

Plug-and-Play

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 the computer 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 LCD Monitor Pixel Policy, see
Dell support site at: http://www.dell.com/support/monitors.

16 | About Your Monitor

Setting Up the Monitor

Using the Tilt and Swivel

Tilt and Swivel

You can tilt the monitor for the most comfortable viewing angle.

Connecting Your Monitor

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

Safety Instructions.

To connect your monitor to the computer:
1 Turn o your computer.
2 Connect the HDMI/USB Type C cable from your monitor to

thecomputer.
3 Switch on your monitor.
4 Select the correct input source at Monitor OSD Menu and turn on your
computer.

Setting Up the Monitor | 17

Connecting the HDMI cable

Connecting the USB Type C cable(C to C)

NOTE:

1 Support USB Type C Alternate mode with DP 1.2, DP1.1 is not supported.

2 Support USB PD (Power Delivery) profiles up to 45W.

3 If your Notebook required >45W to operate and the battery is drained, it may not

power up or charge with S2718D USB PD.

18 | Setting Up the Monitor

Operating the Monitor

Turning on the Monitor

Press the button to turn on the monitor.

Using the Front Panel Controls

Use the control buttons on the front of the monitor to adjust the characteristics of the
image being displayed. As you use these buttons to adjust the controls, an OSD shows
the numeric values of the characteristics as they change.

Operating the Monitor | 19

The following table describes the front panel buttons:

Front-Panel Button Description
1

Shortcut key:
Preset Modes

2

Shortcut key:

Brightness/Contrast

3

Menu

4

Exit

5

Power (with power light

indicator)

Use this button to choose from a list of preset
colormodes.

Use this button to directly access the “Brightness/
Contrast” bar.

Use this menu button to launch the on-screen
display (OSD) and select the OSD menu.

See Accessing the Menu System.

Use this button to go back to the main menu or exit
the OSD main menu.

Use the Power button to turn the monitor On and
Off.
The white LED indicates the monitor is On and fully
functional.

A glowing white LED indicates DPMS Power Save
Mode.

20 | Operating the Monitor

Front-Panel Button

Use the buttons on the front of the monitor to adjust the image settings.

Front Panel Button Description

1

Up Down

2

OK

Use the Up (increase) and Down (decrease) keys to adjust
items in the OSD menu.

Use the OK button to confirm your selection.

3

Back

Use the Back button to go back to the previous menu.

Operating the Monitor | 21

Using the On-Screen Display (OSD) Menu

Accessing the Menu System

NOTE: Any changes you make using the OSD menu are automatically saved if
youmove to another OSD menu, exit the OSD menu, or wait for the OSD menu
todisappear.

1 Press the button to launch the OSD menu and display the main menu.

2 Press the and buttons to move between options. As you move from one

icon to another, the option name is highlighted.

3 Press the or or button once to activate the highlighted option.

4 Press the and buttons to select the desired parameter.

5 Press to enter the slide bar and then use the or button, according to the

indicators on the menu, to make your changes.

6 Select the to return to previous menu or to accept and return to previous

menu.

22 | Operating the Monitor

Icon Menu and

Submenus
Brightness/

Contrast

Brightness Brightness adjusts the luminance of the backlight

Contrast Adjust the Brightness first, and then adjust Contrast only if

Input Source Use the Input Source menu to select between different

Description

Use this menu to activate Brightness/Contrast adjustment.

(minimum 0; maximum 100).
Press the button to increase brightness.
Press the button to decrease brightness.

NOTE: Manual adjustment of Brightness is disabled when
Dynamic Contrast is switched on.

further adjustment is necessary.
Press the button to increase contrast and press the

button to decrease contrast (between 0 and 100).
Contrast adjusts the difference between darkness and

lightness on the monitor.

video inputs that are be connected to your monitor.

Operating the Monitor | 23

Icon Menu and

Submenus

USB Type-C Select the USB Type-C input when you are using the USB

HDMI Select the HDMI input when you are using the HDMI

Auto Select

Reset Input
Source

Color Use the Color menu to adjust the color setting mode.

Description

Type-C connector.
Use to select the USB Type-C input source.

connector.
Use to select the HDMI input source.

Use to select Auto Select, the monitor scans for available
input sources.

Resets your monitor’s Input Source settings to the factory
defaults.

24 | Operating the Monitor

Icon Menu and

Submenus

Preset Modes When you select Preset Modes, you can choose Standard,

Description

ComfortView,Multimedia,Movie,Movie HDR ,Game,Game
HDR,Warm,Cool,or Custom Color from the list.

•Standard: Default color settings. This is the default preset
mode.

•ComfortView: Decreases the level of blue light emitted from
the screen to make viewing more comfortable for your eyes.

•Multimedia: Ideal for multimedia applications.

•Movie: Loads color settings ideal for movies.

•*Movie HDR: Loads color settings ideal for movies with HDR

supporting.

•Game: Loads color settings ideal for most gaming
applications.

•*#Game HDR: Loads color settings ideal for games with HDR
supporting.

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

•Cool: Decreases the color temperature. The screen appears
cooler with a blue tint.

•Custom Color: Allows you to manually adjust the color
settings. Press the and buttons to adjust the Red,
Green, and Blue values and create your own preset color
mode.

*HDR: Adapted “High Dynamic Range” appropriate for monitor
usage.

Operating the Monitor | 25

Icon Menu and

Submenus

Input Color
Format

Description

Allows you to set the video input mode to:

•RGB: Select this option if your monitor is connected to a
computer (or DVD player) using the HDMI cable.

•YPbPr: Select this option if your DVD player supports only
YPbPr output.

Hue

Saturation

Reset Color Resets your monitor’s color settings to the factory defaults.

Use or to adjust the hue from 0 to 100.
NOTE: Hue adjustment is available only for Movie and Game

mode.

Use or to adjust the saturation from 0 to 100.
NOTE: Saturation adjustment is available only for Movie and

Game mode.

26 | Operating the Monitor

Icon Menu and

Submenus
Display Use the Display menu to adjust image.

Aspect Ratio Adjust the image ratio to Wide 16:9, Auto Resize,or 4:3.
Monitor

Sleep

Sharpness Makes the image look sharper or softer.

Dynamic
Contrast

Response
Time

Reset Display Restores the display settings to factory defaults.

Description

Sleep After Timeout: Monitor goes into sleep after timeout.
Never: Monitor never goes into sleep.

Use or to adjust the sharpness from ‘0’ to ‘100’.
Allows you to increase the level of contrast to provide sharper

and more detailed image quality.
Push the button to select the Dynamic Contrast “On”
or “Off”.

NOTE: For Game and Movie preset mode only.
NOTE: Dynamic Contrast provides higher contrast if you

select Game or Movie preset mode.
Allows you to set the Response Time to Normal or Fast.

Operating the Monitor | 27

Icon Menu and

Submenus
Energy

Description

Power
Button LED

USB Allows you to enable or disable USB charger function during

Reset Energy Select this option to restore default Energy settings.

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

Allows you to set the state of the power light to save energy.

monitor standby mode.
NOTE: USB ON/OFF under standby mode is only available

when the USB Type-C cable is unplugged. This option will be
greyed out when the USB Type-C cable plugs in.

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

28 | Operating the Monitor

Icon Menu and

Submenus

Language Set the OSD display to one of eight languages.

Transparency

Timer OSD Hold Time: Sets the length of time the OSD remains

Lock

Reset Menu

Personalize Select from Preset Modes, Brightness/Contrast, Input Source,

Description

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

Select this option to change the menu transparency by using

and (min. 0 / max. 100).

active after you press a button.
Use the and buttons to adjust the slider in 1-second

increments, from 5 to 60 seconds.

Controls user access to adjustments. When Lock is selected,
no user adjustments are allowed. All buttons are locked.

NOTE:
Lock function – Either soft lock (through OSD menu) or hard

lock (Press and hold the exit button 6 sec)
Unlock function – Only hard unlock (Press and hold the exit
button 6 sec)

Restore the menu settings to factory defaults.

Aspect Ratio set as shortcut key.

Reset
Persona­lization

Restores shortcut keys to factory defaults.

Operating the Monitor | 29

Icon Menu and

Submenus
Other

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

Description

Select this option to adjust the OSD settings, suchas the
DDC/CI, LCD conditioning, and so on.

you to adjust the monitor settings using software on your
computer.

Select Disable to turn off this feature.
Enable this feature for best user experience and optimum

performance of your monitor.

30 | Operating the Monitor

Icon Menu and

Submenus

LCD
Conditioning

Reset Others Restores other settings, such as DDC/CI, to factorydefaults.

Factory Reset Restores all OSD settings to the factory defaults.

NOTE: This monitor has a built-in feature to automatically calibrate the brightness

to compensate for LED aging.

Description

Helps reduce minor cases of image retention. Depending on
the degree of image retention, the program may take some
time to run. Select Enable to start the process.

Operating the Monitor | 31

OSD Warning Messages

When the Dynamic Contrast feature is enabled (in these preset modes: Game or Movie),
manual brightness adjustment is disabled.

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

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 can see the following message before the DDC/CI function is disabled:

When the monitor enters the Power Save mode, the following message appears:

32 | Operating the Monitor

Activate the computer and wake up the monitor to gain access to the OSD.
If you press any button other than the power button, the following messages will appear

depending on the selected input:

When using the wrong Adapter or Adapter connection exception,you can see the
following message:

If either USB Type-C, HDMI input is selected and the corresponding cable is not
connected, a floating dialog box as shown below appears.

See Troubleshooting for more information.

or

Operating the Monitor | 33

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 whether 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 o both your computer and the monitor.
2 Unplug the video cable from the back of the computer. To ensure proper Self-Test

operation, remove all digital and the analog cables from the back of computer.
3 Turn on the monitor.

The floating dialog box should appear on-screen (against a black background), if the
monitor cannot sense a video signal and is working correctly. While in self-test mode,
the power LED remains white. Also, depending upon the selected input, one of the
dialogs shown below will continuously scroll through the screen.

or

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

disconnected or damaged.
5 Turn o your monitor and reconnect the video cable; then turn on both your

computer and the monitor.

34 | Troubleshooting

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 the screen
abnormality you are experiencing is an inherent problem with your monitor, or with your
computer and video card.

NOTE: You can run the built-in diagnostics only when the video cable is unplugged

and the monitor is in self-test mode.

To run the built-in diagnostics:
1 Make sure that the screen is clean (no dust particles on the surface of the screen).

2 Unplug the video cable(s) from the back of the computer or monitor. The monitor
then goes into the self-test mode.
3 Press and hold Button 1 for 5 seconds. A gray screen appears.
4 Carefully inspect the screen for abnormalities.
5 Press Button 1 on the front panel again. The color of the screen changes to red.
6 Inspect the display for any abnormalities.
7 Repeat steps 5 and 6 to inspect the display in green, blue, black, white, and text
screens.
The test is complete when the text screen appears. To exit, press Button 1 again.

If you do not detect any screen abnormalities upon using the built-in diagnostic tool,
the monitor is functioning properly. Check the video card and computer.

Troubleshooting | 35

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

Missing Pixels LCD screen has

Stuck-on Pixels LCD screen has

Brightness
Problems

Safety Related
Issues

Intermittent
Problems

What You
Experience

No picture •Ensure that the video cable connecting the

No picture or no
brightness

spots

bright spots

Picture too dim
or too bright

Visible signs of
smoke or sparks

Monitor
malfunctions on
& off

Possible Solutions

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 depressed fully.

•Ensure that the correct input source is selected in

the Input Source menu.

•Increase brightness & contrast controls via 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 in

the Input Source menu.

•Cyclepoweron-off.

•Pixelthatispermanentlyoffisanaturaldefect

that canoccur in LCD technology.

•FormoreinformationonDellMonitorQuality

and Pixel Policy, see Dell Support site at:
http://www.dell.com/support/monitors.

•CyclepowerOn-Off.

•Pixelthatispermanentlyoffisanaturaldefect

that canoccur in LCD technology.

•FormoreinformationonDellMonitorQuality

and PixelPolicy, see Dell Support site at:
http://www.dell.com/support/monitors.

•Reset the monitor to factory settings.

•Adjust brightness & contrast controls via OSD.

•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.

•Perform monitor self-test feature check to

determine if the intermittent problem occurs in
self-test mode.

36 | Troubleshooting

Common
Symptoms

Missing Color Picture missing

Wrong Color Picture color

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

What You
Experience

color

not good

Faint shadow
from the static
image displayed
appears on the
screen

Possible Solutions

•Perform monitor self-test.

•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.

•Change the settings of the Preset Modes in the
Color menu OSD depending on the application.

•Adjust R/G/B value under Custom. Color in Color
menu OSD.

•Change the Input Color Format to PC RGB or
YPbPr in the Color menu OSD.

•Run the built-in diagnostics.

•Use the Power Management feature to turn o

the monitor at all times when not in use (for more
information, see Power Management Modes).

•Alternatively, use a dynamically changing
screensaver.

Product Specific Problems

Specific
Symptoms

Screen image is
too small

Cannot adjust
the monitor
with the buttons
on the front
panel

No Input Signal
when user
controls are
pressed

The picture
does not fill the
entire screen

What You
Experience

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

The picture
cannot fill the
height or width
of the screen

Possible Solutions

•Check the Aspect Ratio setting in the Display
menu OSD.

•Reset the monitor to factory settings.

•Turn o the monitor, unplug the monitor power

cable, plug it back, and then turn on the monitor.

•Check whether the OSD menu is locked. If yes,
press and hold the button beside the power
button for 6 seconds to unlock (for more
information, see Lock).

•Check the signal source. Ensure the computer
is not in the power saving mode by moving the
mouse or pressing any key on the keyboard.

•Check whether the signal cable is plugged in
properly. Re-plug the signal cable if necessary.

•Reset the computer or video player.

•Due to dierent video formats (aspect ratio) of

DVDs, the monitor may display in full screen.

•Run the built-in diagnostics.

Troubleshooting | 37

Specific
Symptoms

No image when
using USB Type
C connection
to PC or
Notebook.

No charging
when using
USB Type C
connection to
the Notebook

What You
Experience

Black screen •Verify if the PC or Notebook USB Type C interface

No charging •Verify if the Notebook can support one of

Possible Solutions

can support Alternate mode DP1.2.

•Verify if the Notebook required >45W power
charging.

•USB Type C interface of PC or Notebook can not
support Alternate mode DP1.2.

•The Notebook required >45W power charging.

5V/9V/15V/20V charging profiles.

•Verify if the Notebook required >45W power
charging.

•The Notebook can not support 5V/9V/15V/20V
charging profiles or Need >45W power charging.

38 | Troubleshooting

Appendix

Safety Instructions

For displays with glossy bezels the user should consider the placement of the display as
the bezel may cause disturbing reflections from surrounding light and bright surfaces.

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.

For information on safety instructions, see the Safety, Environmental, and Regulatory
Information (SERI).

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.

Contacting Dell

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.

Dell provides several online and telephone-based support and service options.
Availability varies by country and product, and some services may not be available in
your area.

To get online Monitor support content:

See www.dell.com/support/monitors.

To contact Dell for sales, technical support, or customer service issues:

1 Go to www.dell.com/support.

2 Verify your country or region in the Choose A Country/Region drop-down menu
at the top-left corner of the page.

3 Click Contact Us next to the country dropdown.

4 Select the appropriate service or support link based on your need.

5 Choose the method of contacting Dell that is convenient for you.

Appendix | 39

Setting Up Your Monitor

NOTE: The maximum input resolution to 3840x2160 while you select movie HDR

or game HDR in Color on OSD functions can be supported.

Setting Display Resolution to 2560x1440

For best performance, set the display resolution to 2560x1440 pixels by performing the
following steps:

In Windows Vista, Windows 7, Windows 8 or Windows 8.1:

1 For Windows 8 or Windows 8.1 only, select the Desktop tile to switch to classic
desktop.
2 Right-click on the desktop and click Screen Resolution.
3 Click the Dropdown list of the Screen Resolution and select 2560x1440.
4 Click OK.

In Windows 10:
1 Right-click on the desktop and click Display Settings.

2 Click Advanced display settings.
3 Click the dropdown list of Resolution and select 2560x1440.
4 Click Apply.
If you do not see the recommended resolution as an option, you may need to update

your graphics driver. Please choose the scenario below that best describes the
computer system you are using, and follow the given steps.

Dell computer

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

2 After installing the drivers for your graphics adapter, attempt to set the resolution to
2560x1440 again.

NOTE: If you are unable to set the resolution to 2560x1440, please contact Dell
to inquire about a graphics adapter that supports these resolutions.

40 | Appendix

Non-Dell computer

In Windows Vista, Windows 7, Windows 8 or Windows 8.1:
1 For Windows 8 or Windows 8.1 only, select the Desktop tile to switch

to classic desktop.
2 Right-click on the desktop and click Personalization.
3 Click Change Display Settings.
4 Click Advanced Settings.
5 Identify your graphics controller supplier from the description at the top of the
window (e.g. NVIDIA, AMD, Intel etc.).
6 Refer to the graphic card provider website for updated driver (for example,
http://www.AMD.com or http://www.NVIDIA.com).
7 After installing the drivers for your graphics adapter, attempt to set the resolution
to 2560 x 1440 again.

In Windows 10:
1 Right-click on the desktop and click Display Settings.

2 Click Advanced display settings.
3 Click Display adapter properties.
4 Identify your graphics controller supplier from the description at the top of the

window (e.g. NVIDIA, AMD, Intel etc.).
5 Refer to the graphic card provider website for updated driver (for example,
http://www.AMD.com or http://www.NVIDIA.com).
6 After installing the drivers for your graphics adapter, attempt to set the resolution
to 2560x1440 again.

NOTE: If you are unable to set the recommended resolution, please contact the
manufacturer of your computer or consider purchasing a graphics adapter that

supports the video resolution.

Appendix | 41

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.

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

• To clean your anti-static screen, lightly dampen a soft, clean cloth with water. If
possible, use a special screen-cleaning tissue or solution suitable for the anti-static
coating. Do not use benzene, thinner, ammonia, abrasive cleaners, or compressed
air.

• Use a lightly-dampened, soft cloth to clean the monitor. Avoid using detergent of
any kind as some detergents leave a milky film on the monitor.

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

• Handle your monitor with care as a darker-colored monitor may get scratched and

show white scuff marks more than a lighter- 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.

42 | Appendix