Dell U2515H User Manual

User’s Guide

Dell UltraSharp U2515H

Model No.: U2515H

Regulatory model: U2515Hc

Notes, Cautions, and Warnings

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.

_________________________

Information in this document is subject to change without notice.
© 2014 Dell Inc. All rights reserved.

Reproduction of these materials in any manner whatsoever without the written permission
of Dell Inc. is strictly forbidden.

Trademarks used in this text: Dell and the DELL logo are trademarks of Dell Inc.; Microsoft
and Windows are either trademarks or registered trademarks of Microsoft. Corporation in
the United States and/or other countries, Intel is a registered trademark of Intel Corporation
in the U.S. and other countries; and ATI is a trademark of Advanced Micro Devices, Inc.
ENERGY STAR is a registered trademark of the U.S. Environmental Protection Agency. As an
ENERGY STAR partner, Dell Inc. has determined that this product meets the ENERGY STAR
guidelines for energy efficiency.

Other trademarks and trade names may be used in this document to refer to either the
entities claiming the marks and names or their products. Dell Inc. disclaims any proprietary
interest in trademarks and trade names other than its own.

2014 - 09 Rev. A00

Contents

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

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

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

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

Monitor Specifications ............................................................10

Plug and Play Capability ..........................................................19

Universal Serial Bus (USB) Interface .................................... 20

LCD Monitor Quality and Pixel Policy ..................................21

Maintenance Guidelines .........................................................22

2 Setting Up the Monitor ........................................... 23

Attaching the Stand .................................................................23

Connecting Your Monitor ......................................................23

Organizing Your Cables ..........................................................29

Attaching the Cable Cover .................................................... 30

Removing the Monitor Stand ................................................ 30

Removing the Cable Cover .................................................... 31

Wall Mounting (Optional) .......................................................31

3 Operating the Monitor ............................................32

Power On the Monitor ............................................................32

Using the Front Panel Controls .............................................32

Using the On-Screen Display (OSD) Menu .........................34

Setting the Maximum Resolution......................................... 48

Using the Tilt, Swivel, Vertical Extension, Rotation and

Dual Monitor Setup ................................................................. 48

Adjusting the Rotation Display Settings of Your System ..53

4 Troubleshooting ......................................................54

Self-Test .....................................................................................54

Built-in Diagnostics..................................................................55

Common Problems .................................................................56

Product-Specific Problems ....................................................58

Universal Serial Bus (USB) Specific Problems .................... 60

Mobile High-Definition Link (MHL) Specific Problems.... 60

Contents | 3

5 Appendix.................................................................... 61

FCC Notices (U.S. Only) and Other Regulatory

Information ................................................................................ 61

Contact Dell ..............................................................................61

Setting Up Your Monitor .........................................................62

4 | Contents

About Your Monitor

1

Package Contents

Your monitor ships with the components shown below. Ensure 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.

NOTE: To set up with any other stand, please refer to the respective stand setup

guide for setup instructions.

Monitor

∞

Stand

∞

Cable Cover

∞

Power Cable (Varies by

∞

Countries)

About Your Monitor | 5

DP Cable (Mini-DP to

∞

DP)

USB 3.0 Upstream

∞

Cable (Enables the USB
Ports on the Monitor)

Drivers and

∞

Documentation Media

TM

Dell

UltraSharp U2515H Monitor

Quick Setup Guide

∞

Safety and Regulatory

∞

Information
Factory calibration

∞

report

Product Features

The Dell UltraSharp U2515H flat panel display has an active matrix, Thin-Film
Transistor (TFT), Liquid Crystal Display (LCD) and LED backlight. The monitor features
include:

U2515H: 63.44 cm (25.0 inch) viewable area display (measured diagonally).

∞

2560 x 1440 resolution, plus full-screen support for lower resolutions.
Wide viewing angle to allow viewing from a sitting or standing position, or while

∞

moving from side-to-side.
Tilt, swivel, vertical extension and rotate adjustment capabilities.

∞

Ultra-thin bezel minimizes the bezel gap in multi-monitor usage, enabling easier

∞

set up with an elegant viewing experience.
Removable stand and Video Electronics Standards Association (VESA™) 100 mm

∞

mounting holes for flexible mounting solutions.
Extensive all digital connectivity with DisplayPort, mini DisplayPort, HDMI (MHL),

∞

USB 3.0 helps future proof your monitor.
Plug and play capability if supported by your system.

∞

99% sRGB Coverage with an average delta E ≤ 3.

∞

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

∞

optimization.
Software and documentation media includes an Information File (INF), Image

∞

Color Matching File (ICM), and product documentation.

6 | About Your Monitor

Dell Display Manager Software included (comes in the CD shipped with the

∞

monitor).
Energy Saver feature for Energy Star compliance.

∞

Security lock slot.

∞

Stand lock.

∞

Capability to switch from wide aspect to standard aspect ratio while maintaining

∞

the image quality.
EPEAT Gold Rating.

∞

U2515H monitor is BFR/PVC-free (Halogen-free) excluding external cables.

∞

TCO-Certified Displays.

∞

Meets NFPA 99 leakage current requirements.

∞

Arsenic-Free glass and Mercury-Free for the panel only.

∞

High Dynamic Contrast Ratio (2,000,000:1).

∞

0.5 W standby power when in the sleep mode.

∞

Energy Gauge shows the energy level being consumed by the monitor in real

∞

time.

Analogue backlight dimming control for flicker free display.

∞

Identifying Parts and Controls

Front View

Label Description

1 Function buttons (For more information, see

Operating the Monitor)

2 Power LED indicator
3 Power On/Off button

2 31

Front panel controls

About Your Monitor | 7

Back View

Back View with monitor stand

Label Description Use

1 VESA mounting holes (100 mm x 100

mm - behind attached VESA Cover)

2 Regulatory label Lists the regulatory approvals.
3 Stand release button Releases stand from monitor.
4 Security lock slot Secures monitor with security lock

5 Barcode serial number label Refer to this label if you need to

6 USB downstream port* Connects your USB device. You can

7 Cable management slot Uses to organize cables by placing

* It is recommended to use this port for your wireless USB device whenever possible.

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

(security lock not included).

contact Dell for technical support.

only use this connector after you
have connected the USB cable to
the computer and USB upstream
connector on the monitor.

them through the slot.

8 | About Your Monitor

Side View

Bottom View

Bottom view without monitor stand

Label Description Use

1 AC power cord connector Connect the power cable.
2 Dell Soundbar mounting

slots

3 HDMI (MHL) port

connector

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

5 DisplayPort in connector Connect your computer with DP cable.
6 Mini DisplayPort in

connector

Attach the optional Dell Soundbar. (Concealed
below removable plastic sheets)

Connect your MHL devices with MHL cable.

mm screw (screw not included).

Connect your computer with Mini-DP to DP
cable.

About Your Monitor | 9

7 DisplayPort out (MST)

connector

8

Audio-Line out Connect your speakers*.

9 USB upstream port Connect the USB cable that came with your

10

USB downstream port Connect your USB device. You can only use

(a,b)

* Headphone usage is not supported for the audio line out connector.

** It is recommended to use either the port (10b) or the USB downstream port on the
rear side for your wireless USB device whenever possible.

DisplayPort output for MST (Multi-Stream
Transport) capable monitor. DP 1.1 monitor can
only be connected as the last monitor in the
MST chain. To enable MST, refer to instruction
on section "Connecting the monitor for DP

Multi-Stream Transport (MST) function".

monitor to the computer. Once this cable is
connected, you can use the USB connectors on
the monitor.

this connector after you have connected the
USB cable to the computer and USB upstream
connector on the monitor.**

Monitor Specifications

Flat Panel Specifications

Model U2515H

Screen type Active matrix - TFT LCD
Panel type In Plane Switching
Viewable image
Diagonal

Horizontal, Active Area

Vertical, Active Area

Area
Pixel pitch 0.216 mm
Viewing angle 178° (vertical) typical, 170° (vertical) Min

Luminance output 350 cd/m² (typical), 50 cd/m² (min)
Contrast ratio 1000 to 1 (typical), 700 to 1(Min)

Faceplate coating Anti-Glare with 3H hardness
Backlight LED edgelight system

634.4 mm (25.0 inches)

552.96 mm (21.77 inches)

311.04 mm (12.25 inches)

171992.68 mm2 (266.68 inch2)

178° (horizontal) typical, 170° (horizontal) Min

2M to 1 (typical Dynamic Contrast On)

10 | About Your Monitor

Response time FAST mode: 6 ms gray to gray (typical)

NORMAL mode: 8 ms gray to gray (typical)

On/Off: 19 ms black to white (typical)
Color depth 16.78 million colors
Color gamut CIE 1976 (91%), CIE 1931 (76%) and sRGB

coverage 99%

Resolution Specifications

Model U2515H

Horizontal scan range 30 kHz to 113 kHz (automatic)
Vertical scan range 56 Hz to 86 Hz (automatic)
Maximum preset resolution 2560 x 1440 at 60 Hz

Supported Video Modes

Model U2515H

Video display capabilities (HDMI
& DP playback)

480p, 480i, 576p, 720p, 1080p, 576i, 1080i

Preset Display Modes

Display Mode Horizontal

Frequency

(kHz)

VESA, 720 x 400 31.5 70.1 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, 1600 x 1200 75.0 60.0 162.0 +/+
VESA, 1920 x 1080 67.5 60.0 148.5 +/+
VESA, 2560 x 1440 88.8 60.0 241.5 +/-

Vertical

Frequency

(Hz)

Pixel Clock

(MHz)

About Your Monitor | 11

Sync Polarity
(Horizontal /

Vertical)

MHL Source Display Modes

Display Mode Frequency (Hz)

640 x 480p 60
720 x 480p 60

720 x 576p 50
1280 x 720p 60
1280 x 720p 50

1920 x 1080i 60

1920 x 1080i 50
1920 x 1080p 30
1920 x 1080p 60
1920 x 1080p 50

720 (1440) x 480i 60
720 (1440) x 576i 50

MST Multi-Stream Transport (MST) Modes

MST Source Monitor Maximum number of external monitor that can be

supported

2560x1440/60Hz 1920x1200/60Hz 1920x1080/60Hz

2560 x 1440/ 60Hz 1 2 2

Electrical Specifications

Model U2515H

Video input signals

AC input voltage/frequency/
current

Inrush current

* Does not support HDMI 1.4 optional specification, includes HDMI Ethernet Channel
(HEC), Audio Return Channel (ARC), standard for 3D format and resolutions, standard
for 2K and 4K digital cinema resolution.

** Supports DP1.2 (CORE) specification, include HBR2, MST and DP audio.

HDMI 1.4 (MHL 2.0)*, 600mV for each

∞

differential line, 100 ohm input impedance per
differential pair

DisplayPort 1.2**, 600mV for each differential

∞

line, 100 ohm input impedance per differential
pair

100 VAC to 240 VAC / 50 Hz or 60 Hz ± 3 Hz / 1.5
A (typical)

120 V: 40 A (Max.) at 0 °C (cold start)

∞

240 V: 80 A (Max.) at 0 °C (cold start)

∞

12 | About Your Monitor

Physical Characteristics

Model U2515H
Connector type DP, black connector (includes DP in and DP out);

Mini DisplayPort; HDMI (MHL); USB 3.0

Signal cable type

Dimensions (with stand)

Height (extended) 512.5 mm (20.18 inches)
Height (compressed) 398.0 mm (15.67 inches)
Width 569.0 mm (22.40 inches)
Depth 205.0 mm (8.07 inches)

Dimensions (without stand)

Height 338.7 mm (13.33 inches)
Width 569.0 mm (22.40 inches)
Depth 46.4 mm (1.83 inches)

Stand dimensions

Height (extended) 418.0 mm (16.46 inches)
Height (compressed) 371.6 mm (14.63 inches)
Width 245.0 mm (9.65 inches)
Depth 205.0 mm (8.07 inches)

Weight

Weight with packaging 9.8 kg (21.56 lb)
Weight with stand assembly and

cables
Weight without stand assembly

(For wall mount or VESA mount
considerations - no cables)

Weight of stand assembly 2.1 kg (4.64 lb)
Front frame gloss Black Frame - 13 gloss unit (max.)

Digital: detachable, HDMI, 19 pins

∞

Digital: detachable, MHL, 19 pins

∞

Digital: detachable, Mini-DP to DP, 20 pins

∞

Universal Serial Bus: detachable, USB, 9 pins

∞

6.8 kg (14.96 lb)

4.4 kg (9.64 lb)

About Your Monitor | 13

Environmental Characteristics

Model U2515H

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 5,000 m (16,400 ft) (maximum)
Non-operating 12,192 m (40,000 ft) (maximum)

Thermal dissipation

296.67 BTU/hour (maximum)

∞

119.35 BTU/hour (typical)

∞

Power Management Modes

If you have VESA's DPM™ compliance display 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.

* Zero power consumption in OFF mode can only be achieved by disconnecting the
main cable from the monitor.

VESA

Modes

Normal
operation

Active-off
mode

Switch off - - - Off Less than 0.5 W

Horizontal

Sync

Active Active Active White 87 W (maximum)**

Inactive Inactive Blanked White

Vertical

Sync

Video Power

Indicator

(Glowing )

Power

Consumption

35 W (typical)
Less than 0.5 W

** Maximum power consumption with max luminance and USB active.

The OSD functions only in the normal operation mode. When any button is pressed
in the Active-off mode, one of the following messages will be displayed:

14 | About Your Monitor

Dell UltraSharp U2515H

There is no signal coming from your computer. Press any key on the

keyboard or move the mouse to wake it up. If there is no display, press the

monitor button now to select the correct input source on the On-Screen-

Display menu.

or

Dell UltraSharp U2515H

There is no signal coming from your device. Please activate your device to

wake it up. If there is no display, press the monitor button now to select

the correct input source on the On-Screen-Display menu.

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

NOTE: This monitor is ENERGY STAR®-compliant.

About Your Monitor | 15

Pin Assignments

DisplayPort Connector

Pin
Number

10 ML3(p)

12 ML3(n)
13 GND
14 GND
15 AUX(p)
16 GND
17 AUX(n)
18 GND
19 Re-PWR
20 +3.3 V DP_PWR

20-pin Side of the Connected
Signal Cable

1 ML0(p)
2 GND
3 ML0(n)

4 ML1(p)

5 GND

6 ML1(n)

7 ML2(p)

8 GND
9 ML2(n)

11 GND

16 | About Your Monitor

Mini DisplayPort Connector

Pin
Number

20-pin Side of the Connected
Signal Cable

1 GND
2 Hot Plug Detect
3 ML3(n)

4 GND

5 ML3(n)

6 GND

7 GND

8 GND
9 ML2(n)

10 ML0(p)

11 ML2(p)
12 ML0(p)
13 GND
14 GND
15 ML1(n)
16 AUX(p)
17 ML1(p)
18 AUX(n)
19 GND
20 +3.3 V DP_PWR

About Your Monitor | 17

HDMI Connector

Pin
Number

10 TMDS CLOCK+

12 TMDS CLOCK­13 CEC
14 Reserved (N.C. on device)
15 DDC CLOCK (SCL)
16 DDC DATA (SDA)
17 DDC/CEC Ground
18 +5V POWER
19 HOT PLUG DETECT

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-

11 TMDS CLOCK SHIELD

18 | About Your Monitor

MHL Connector

Pin
Number

10 TMDS CLOCK+

12 TMDS CLOCK­13 CEC
14 Reserved (N.C. on device)
15 DDC CLOCK (SCL)
16 DDC DATA (SDA)
17 GND
18 VBUS (+5V, 900mA maximum)
19 CBUS

19-pin Side of the Connected
Signal Cable

1 TMDS DATA 2+

2 TMDS DATA 2 SHIELD

3 TMDS DATA 2­4 TMDS DATA 1+

5 GND
6 TMDS DATA 1-

7 MHL+
8 TMDS DATA 0 SHIELD
9 MHL-

11 GND

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 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.

About Your Monitor | 19

Universal Serial Bus (USB) Interface

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

NOTE: This monitor is SuperSpeed USB 3.0 compatible.

Transfer Speed Data Rate Power Consumption*

Super-speed 5 Gbps 4.5 W (Max, each port)
High speed 480 Mbps 4.5 W (Max, each port)
Full speed 12 Mbps 4.5 W (Max, each port)

* Up to 2A on USB downstream port (port with lightning icon) with BC1.2
compliance devices or normal USB devices.

USB Upstream Connector

Pin Number 9-pin Side of the Connector

1 VCC
2 D­3 D+
4 GND
5 SSTX­6 SSTX+
7 GND
8 SSRX­9 SSRX+

20 | About Your Monitor

USB Downstream Connector

Pin Number 9-pin Side of the Connector

1 VCC
2 D­3 D+
4 GND
5 SSTX­6 SSTX+
7 GND
8 SSRX­9 SSRX+

USB Ports

1 upstream - back

∞

5 downstream - back

∞

Power Charging Port- the port with lightning icon; supports fast current

∞

charging capability if the device is BC1.2 compatible.

NOTE: USB 3.0 functionality requires a USB 3.0-capable computer.

NOTE: The monitor's USB interface works only when the monitor is On or in the

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.

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: http://www.dell.com/support/monitors.

About Your Monitor | 21

Maintenance Guidelines

Cleaning Your Monitor

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 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 anti­static coating. Do not use benzene, thinner, ammonia, abrasive cleaners or
compressed air.

Use a lightly-dampened, warm 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.

22 | About Your Monitor

Setting Up the Monitor

2

Attaching the Stand

NOTE: The stand is detached when the monitor is shipped from the factory.

NOTE: This is applicable for a monitor with a stand. When any other stand

is bought, please refer to the respective stand setup guide for the setup
instructions.

To attach the monitor stand:

1.

Remove the cover and place the monitor on it.

2.

Fit the two tabs on the upper part of the stand to the groove on the back of the
monitor.

3.

Press the stand till it snaps into place.

Connecting Your Monitor

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

Safety Instructions.

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

To connect your monitor to the computer:

1.

Turn Off your computer and disconnect the power cable.
Connect the DP/Mini-DP to DP/HDMI/MHL cable from your monitor to the
computer.

Setting Up the Monitor | 23

Connecting the HDMI cable

Connecting the MHL cable

Connecting the black DisplayPort (Mini-DP to DP) cable

24 | Setting Up the Monitor

Connecting the black DisplayPort (DP to DP) cable

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

NOTE: U2515H supports the DP MST feature. To make use of this feature, your

PC Graphics Card must be certified to DP1.2 with MST option.

The default out of factory setting in the U2515H is DP1.1a.

To enable MST connection, please use only DP cable as provided in box (or other
DP1.2 certified cable) and change the DP setting to DP1.2 by performing the below
steps:

A) Monitor is able to show content

1.

Use OSD button to navigate to Display Settings.

Setting Up the Monitor | 25

Brightness / Contrast

Input Source

Color

Energy

Menu

Personalize

Others

Aspect Ratio

Sharpness

Dynamic Contrast

Response Time

DP 1.2

Reset Display Settings

Energy UseDell UltraSharp U2515H

Wide 16:9

50

Normal

Disable

Resolution: 1920x1080, 60Hz

2.

Go to DP 1.2 selection.

3.

Select Enable or Disable accordingly

4.

Follow the screen message to confirm selection of DP1.2 or DP1.1a.

Maximum: 2560x1440, 60Hz

Dell UltraSharp U2515H

Please ensure your Graphics Card can support DP MST(Daisy Chain)/

HBR2(High Bit Rate) before changing the monitor setting to DP1.2.

Incorrect setting may result in blank screen on monitor.

Confirm

Exit

Dell UltraSharp U2515H

DP MST/HBR2 will be disabled for DP1.1a

26 | Setting Up the Monitor

Confirm

Exit

B) Monitor fails to show any content (blank screen)

1.

Use the and button to highlight DP or mDP.

DP

mDP

2.

Press and hold the button for approximately 8 seconds.

3.

The DisplayPort configuration message will appear:

Dell UltraSharp U2515H

DP 1.2?

Enable

Disable

4.

Use the button to enable DP1.2 or button to exit without making any
changes.

Repeat the above steps to change the setting back to DP 1.1a if necessary.

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

Appearance of the computer may vary.

Setting Up the Monitor | 27

Connecting the USB 3.0 cable

After you have completed connecting the Mini-DP to DP/DP/HDMI cable, follow the
procedures below to connect the USB 3.0 cable to the computer and complete your
monitor setup:

1.

Connect the upstream USB 3.0 port (cable supplied) to an appropriate USB 3.0
port on your computer. (See Bottom View for details.)

2.

Connect the USB 3.0 peripherals to the downstream USB 3.0 ports on the
monitor.

3.

Plug the power cables for your computer and monitor into a nearby outlet.

4.

Turn On the monitor and the computer.
If your monitor displays an image, installation is complete. If it does not display
an image, see Universal Serial Bus (USB) Specific Problems.

5.

Use the cable slot on the monitor stand to organize the cables.

Using the (MHL) Mobile-High Definition Link

NOTE: This monitor is MHL certified.
NOTE: To use the MHL function, use only MHL-certified cable and source

devices that support MHL output.

NOTE: Some MHL source devices may take more than a few seconds or longer

to output an image, depending on MHL source devices.

NOTE: When the connected MHL source device enters Standby mode, the

monitor will display black screen or show the massage below, depending on
MHL source device's output.

Dell UltraSharp U2515H

Entering Power Save Mode.

To enable MHL connection, please perform the below steps:

28 | Setting Up the Monitor

1.

Plug the power cable of your monitor into an AC outlet.

2.

Connect the (micro) USB port on your MHL source device to HDMI (MHL) 1 or
HDMI (MHL) 2 port on the monitor with a MHL-certified cable (See Bottom View
for details.)

3.

Turn On the monitor and the MHL source device.

4.

Select input source on monitor to HDMI (MHL) 1 or HDMI (MHL) 2 by using OSD
Menu (See Using the On-Screen Display (OSD) Menu for details.)

5.

If it does not display an image, see Mobile High-Definition Link (MHL) Specific

Problems.

Organizing Your Cables

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

Your Monitor for cable attachment,) organize all cables as shown above.

Setting Up the Monitor | 29

Attaching the Cable Cover

NOTE: The cable cover is detached when the monitor is shipped from the

factory.

2

1

1.

Fit the two tabs on the bottom part of the cable cover to the groove on the back
of the monitor.

2.

Press the cable cover till it snaps into place.

Removing the Monitor Stand

NOTE: To prevent scratches on the LCD screen while removing the stand,

ensure that the monitor is placed on a soft, clean surface.

NOTE: This is applicable for a monitor with a stand. When any other stand

is bought, please refer to the respective stand setup guide for the setup
instructions.

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

30 | Setting Up the Monitor

3

2

Removing the Cable Cover

1

2

1.

Press the tab on the cable cover.

2.

Remove the two tabs on the bottom part of the cable cover from the groove on
the back of the monitor.

Wall Mounting (Optional)

(Screw dimension: M4 x 10 mm).
Refer to the instructions that come with the VESA-compatible wall mounting kit.

1.

Place the monitor panel on a soft cloth or cushion on a stable, flat table.

2.

Remove the stand.

3.

Use a Phillips crosshead screwdriver to remove the four screws securing the
plastic cover.

4.

Attach the mounting bracket from the wall mounting kit to the monitor.

5.

Mount the monitor on the wall by following the instructions that comes with the
wall mounting kit.

NOTE: For use only with UL-listed wall mount bracket with minimum weight/

load bearing capacity of 4.91 kg.

Setting Up the Monitor | 31

Operating the Monitor

3

Power 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.

2 31

The following table describes the front panel buttons:

Front Panel Button Description

1

Shortcut key/Preset

Modes

32 | Operating the Monitor

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

Use this button to directly access the Brightness/

Contrast menu.

Shortcut key/

Brightness/Contrast

Use the 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 light indicates the monitor is On and fully
functional. A glowing white light indicates the power
save mode.

2

and

3

Power (with power

light indicator)

Menu

Exit

Front Panel Button

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

Front Panel Button Description

1

Up

2

Down

3

OK

4

Back

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

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

Use the OK button to confirm your selection.

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

Operating the Monitor | 33

Using the On-Screen Display (OSD) Menu

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.

1.

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

Main Menu for digital (HDMI (MHL) 1/ HDMI (MHL) 2) input

Energy UseDell UltraSharp U2515H

Brightness / Contrast

Input Source

Color

Display

Energy

Menu

Personalize

Others

50 50

Resolution: 1920x1080, 60Hz

or

Main Menu for digital (mini DisplayPort) input

Brightness / Contrast

Input Source

Color

Display

Energy

Menu

Personalize

Others

Resolution: 1920x1080, 60Hz

50 50

or

34 | Operating the Monitor

Maximum: 2560x1440, 60Hz

Energy UseDell UltraSharp U2515H

Maximum: 2560x1440, 60Hz

Main Menu for digital (DP) input

Brightness / Contrast

Input Source

Color

Display

Energy

Menu

Personalize

Others

Energy UseDell UltraSharp U2515H

50 50

Resolution: 1920x1080, 60Hz

2.

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

Maximum: 2560x1440, 60Hz

from one icon to another, the option name is highlighted. See the following
table for a complete list of all the options available for the monitor.

3.

Press the

4.

Press and button to select the desired parameter.

5.

Press to enter the slide bar and then use the and buttons, according

button once to activate the highlighted option.

to the indicators on the menu, to make your changes.

6.

Select the button to return to the main menu.

Operating the Monitor | 35

Icon Menu and

Submenus

Brightness/

Contrast

Description

Use this menu to activate Brightness/Contrast
adjustment.

Energy UseDell UltraSharp U2515H

Brightness / Contrast

Input Source

Color

Display

Energy

Menu

Personalize

Others

50 50

Resolution: 1920x1080, 60Hz

Maximum: 2560x1440, 60Hz

Brightness Brightness adjusts the luminance of the backlight.

Press the button to increase the brightness and press
the button to decrease the brightness (min. 0 / max.

100).

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

Contrast Adjust the Brightness first, and then adjust the Contrast

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

button to decrease the contrast (min. 0 / max. 100).

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

36 | Operating the Monitor

Input Source Use the Input Source menu to select between the

different video signals that may be connected to your
monitor.

Energy UseDell UltraSharp U2515H

Brightness / Contrast

Input Source

Color

Display

Energy

Menu

Personalize

Others

DP

mDP

HDMI(MHL) 1

HDMI(MHL) 2

Resolution: 1920x1080, 60Hz

Maximum: 2560x1440, 60Hz

DP Select the DP input when you are using the DisplayPort

(DP) connector. Press to select the DP input source.

mDP Select the mDP input when you are using the Mini

DisplayPort (Mini DP) connector. Press to select the

mDP input source.

HDMI (MHL) 1
HDMI (MHL) 2

Select the HDMI (MHL) 1 or HDMI (MHL) 2 input when
you are using the HDMI connectors. Press to select

the HDMI (MHL) 1 or HDMI (MHL) 2 input source.

Color Use Color to adjust the color setting mode.

Energy UseDell UltraSharp U2515H

Brightness / Contrast

Input Source

Color

Display

Energy

Menu

Personalize

Others

Resolution: 1920x1080, 60Hz

Input Color Format

Gamma

Preset Modes

Reset Color Settings

RGB

PC

Standard

Maximum: 2560x1440, 60Hz

Operating the Monitor | 37

Input Color

Format

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 (or
DisplayPort cable) or MHL devices using MHL cable.

YPbPr: Select this option if your monitor is connected to
a DVD player by YPbPr using HDMI cable (or DisplayPort
cable) or MHL devices by YPbPr using MHL cable.

Or if the DVD (or MHL devices) color output setting is not
RGB.

Energy UseDell UltraSharp U2515H

Brightness / Contrast

Input Source

Color

Display

Energy

Menu

Personalize

Others

Input Color Format

Gamma

Preset Modes

Reset Color Settings

RGB

YPbPr

Resolution: 1920x1080, 60Hz

Maximum: 2560x1440, 60Hz

Gamma Allows you to set the Gamma to PC or MAC.

Energy UseDell UltraSharp U2515H

Brightness / Contrast

Input Source

Color

Display

Energy

Menu

Personalize

Others

Resolution: 1920x1080, 60Hz

Input Color Format

Gamma

Preset Modes

Reset Color Settings

PC

MAC

Maximum: 2560x1440, 60Hz

38 | Operating the Monitor

Preset Modes When you select Preset Modes, you can choose

Standard, Multimedia, Movie, Game, Paper, Color Temp.
or Custom Color from the list.

Standard: Loads the monitor's default color settings.

∞

This is the default preset mode.
Multimedia: Loads color settings ideal for multimedia

∞

applications.
Movie: Loads color settings ideal for movies.

∞

Game: Loads color settings ideal for most gaming

∞

applications.
Paper: Loads brightness and sharpness settings ideal

∞

for viewing text. Blend the text background to simulate
paper media without affecting color images. Applies to
RGB input format only.

Color Temp.: Allows users to select the color

∞

temperature: 5000K, 5700K, 6500K, 7500K, 9300K and

10000K.
Custom Color: Allows you to manually adjust the color

∞

settings.

Press the and buttons to adjust the three colors (R,
G, B) values and create your own preset color mode.

Energy UseDell UltraSharp U2515H

Brightness / Contrast

Input Source

Color

Display

Energy

Menu

Personalize

Others

Input Color Format

Gamma

Preset Modes

Reset Color Settings

Standard

Multimedia

Movie

Game

Paper

Color Temp.

Custom Color

Resolution: 1920x1080, 60Hz

Maximum: 2560x1440, 60Hz

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.

NOTE: Hue adjustment is available only when you select
Movie or Game preset mode.

Operating the Monitor | 39

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

Reset your monitor color settings to the factory settings.

Settings

Display Use the Display to adjust image.

Energy UseDell UltraSharp U2515H

Brightness / Contrast

Input Source

Color

Display

Energy

Menu

Personalize

Others

Aspect Ratio

Sharpness

Dynamic Contrast

DP 1.2

Reset Display Settings

Wide 16:9

50

NormalResponse Time

Disable

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

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

Use or to adjust the sharpness from '0' to '100'.

Response Time User can select between Fast or Normal.

Dynamic
Contrast

Allows you to increase the level of contrast to provide
sharper and more detailed image quality.

Press the button to select the Dynamic Contrast "On"
or "Off".

NOTE: Dynamic Contrast provides higher contrast if you
select Game or Movie preset mode.

40 | Operating the Monitor

Resolution: 1920x1080, 60Hz

Maximum: 2560x1440, 60Hz

DP 1.2

Reset Display

Settings

Energy

Press to enable or disable DP 1.2.
To use the DP MST (Daisy Chain) or HBR2 feature, enable

DP 1.2.
NOTE: Ensure your Graphics Card can support these

features before selecting DP 1.2. Wrong setting may result
in blank screen. Some Graphics Cards do not support
MCCS (Monitor Control Command Set) at DP 1.2. In these
cases, DDM (Dell Display Manager) may not run.

Select this option to restore default display settings.

Energy UseDell UltraSharp U2515H

Brightness / Contrast

Input Source

Color

Display

Energy

Menu

Personalize

Other

Power Button LED

USB

Reset Energy Settings

On During Active

O During Standby

Maximum: 2560x1440, 60Hz

Power Button

LED

Resolution: 1920x1080, 60Hz

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

USB Allows you to enable or disable USB function during

monitor standby mode.
NOTE: USB on/off under standby mode is only available

when the USB upstream cable is unplugged. This option
will be greyed out when the USB upstream cable plugs in.

Reset Energy

Select this option to restore default Energy Settings.

Settings

Operating the Monitor | 41

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.

Energy UseDell UltraSharp U2515H

Brightness / Contrast

Input Source

Color

Display

Energy

Menu

Personalize

Others

Language

Rotation

Transparency

Timer

Lock

Reset Menu Settings

English

20

20s

Unlock

Resolution: 1920x1080, 60Hz

Maximum: 2560x1440, 60Hz

Language Language options set the OSD display to one of the eight

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

Rotation Rotates the OSD by 90 degrees counter-clockwise. You

can adjust the menu according to your Display Rotation.

Transparency Select this option to change the menu transparency by

pressing the and buttons (Minimum: 0 ~ Maximum:

100).

Timer OSD Hold Time: sets the length of time the OSD will

remain active after the last time you pressed a button.
Use or to adjust the slider in 1 second increments,

from 5 to 60 seconds.

Lock 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 the OSD menu)

or hard lock (press and hold the button beside the power
button for 10 seconds)

Unlock function – Only hard unlock (press and hold the
button beside the power button for 10 seconds)

Reset Menu

Reset all OSD settings to the factory preset values.

Settings

42 | Operating the Monitor

Personalize Users can choose a feature from Preset Modes,

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

Energy UseDell UltraSharp U2515H

Brightness / Contrast

Input Source

Color

Display

Energy

Menu

Personalize

Others

Shortcut Key 1

Shortcut Key 2

Reset Personalization

Preset Modes

Brightness / Contrast

Input Source

Aspect Ratio

Rotation

Resolution: 1920x1080, 60Hz

Maximum: 2560x1440, 60Hz

Shortcut Key 1 User can select one of the followings: Preset Modes,

Brightness/Contrast, Input Source, Aspect Ratio and
Rotation to set the Shortcut Key 1.

Shortcut Key 2 User can select one of the followings: Preset Modes,

Brightness/Contrast, Input Source, Aspect Ratio and
Rotation to set the Shortcut Key 2.

Reset

Allows you to restore shortcut key to the default setting.

Personalization

Others

Brightness / Contrast

Input Source

Color

Display

Energy

Menu

Personalize

Others

Resolution: 1920x1080, 60Hz

Button Sound

DDC/CI

LCD Conditioning

Reset Other Settings

Factory Reset

Energy UseDell UltraSharp U2515H

O

Enable

Disable

Reset All Settings

Maximum: 2560x1440, 60Hz

Button Sound The monitor beeps everytime a new option is selected in

the menu. This feature enables or disables the sound.

Operating the Monitor | 43

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

allows your monitor parameters (brightness, color
balance and etc.) to be adjustable via the software on
your computer.

You can disable this feature by selecting Disable.
Enable this feature for best user experience and optimum

performance of your monitor.

Energy UseDell UltraSharp U2515H

Brightness / Contrast

Input Source

Color

Display

Energy

Menu

Personalize

Others

Button Sound

DDC/CI

LCD Conditioning

Reset Other Settings

Factory Reset

Enable

Disable

Maximum: 2560x1440, 60Hz

LCD

Conditioning

Resolution: 1920x1080, 60Hz

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
Enable.

Energy UseDell UltraSharp U2515H

Reset Other

Settings

Brightness / Contrast

Input Source

Color

Display

Energy

Menu

Personalize

Others

Resolution: 1920x1080, 60Hz

Reset all settings under the Others setting menu to the
factory preset values.

Button Sound

DDC/CI

LCD Conditioning

Reset Other Settings

Factory Reset

Enable

Disable

Maximum: 2560x1440, 60Hz

Factory Reset Reset all settings to the factory preset values.

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

brightness to compensate for LED aging.

44 | Operating the Monitor

OSD Warning Messages

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

Dell UltraSharp U2515H

Do you wish to turn o Dynamic Contrast?

No

Yes

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

Dell UltraSharp U2515H

The current input timing is not supported by the monitor display. Please

change your input timing to 2560x1440, 60Hz or any other monitor

listed timing as per the monitor specifications.

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:

Dell UltraSharp U2515H

The function of adjusting display setting using PC application will be

disabled.

Do you wish to disable DDC/CI function?

No

Yes

Operating the Monitor | 45

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

Dell UltraSharp U2515H

Entering Power Save Mode.

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

If you press any button other than the power button, one of the following messages
will appear depending on the selected input:

HDMI (MHL)/mDP/DP input

Dell UltraSharp U2515H

There is no signal coming from your computer. Press any key on the

keyboard or move the mouse to wake it up. If there is no display, press

the monitor button now to select the correct input source on the

On-Screen-Display menu.

or

Dell UltraSharp U2515H

There is no signal coming from your device. Please activate your device to

wake it up. If there is no display, press the monitor button now to select

the correct input source on the On-Screen-Display menu.

If either HDMI (MHL), mDP or DP input is selected and the corresponding cable is not
connected, a floating dialog box as shown below appears.

Dell UltraSharp U2515H

or

46 | Operating the Monitor

or

or

Dell UltraSharp U2515H

No HDMI (MHL) 2 Cable

The dispaly will go into Power Save Mode in 5 minutes

www.dell.com/support/monitors

Dell UltraSharp U2515H

No mDP Cable

The dispaly will go into Power Save Mode in 5 minutes

www.dell.com/support/monitors

Dell UltraSharp U2515H

?

No DP Cable

The dispaly will go into Power Save Mode in 5 minutes

www.dell.com/support/monitors

See Troubleshooting for more information.

Operating the Monitor | 47

Setting the Maximum Resolution

To set the maximum resolution for the monitor:
In Windows® 7, Windows® 8 and Windows® 8.1:

1.

For Windows® 8 and 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.

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

If you have a Dell desktop or portable computer:

Go to http://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 (portable 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.

∞

Using the Tilt, Swivel, Vertical Extension, Rotation and Dual Monitor Setup

NOTE: This is applicable for a monitor with a stand. When any other stand is

bought, please refer to the respective stand setup guide for set up instructions.

Tilt, Swivel

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

5°

21°

45°45°

NOTE: The stand is detached when the monitor is shipped from the factory.

48 | Operating the Monitor

Vertical Extension

NOTE: The stand extends vertically up to 115 mm. The figure below illustrates

how to extend the stand vertically.

115mm

Rotating the Monitor

Before you rotate the monitor, your monitor should be fully vertically extended (

NOTE: The stand is detached when the monitor is shipped from the factory.) and fully

tilted up to avoid hitting the bottom edge of the monitor.

Operating the Monitor | 49

Rotate clockwise

90°

Rotate counterclockwise

90°

0°

0°

50 | Operating the Monitor

Reverse (180°) mount

NOTE: To reverse (180°) mount, remove the stand and use wall mounting

solution (optional).

180°

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.).

Dual-Monitor Setup

The ability to rotate 90° clockwise, 90° counterclockwise and reverse (180°) mount
enable the thinnest borders of each monitor to be placed side by side to ensure
minimum gap between display images.

The recommended dual-monitor setup:

Landscape (side by side)

Operating the Monitor | 51

Landscape (Top-bottom)

Portrait

180°

Supported by wall
mounting solution
(optional)

52 | Operating the Monitor

90°

90°

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 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 | 53

Troubleshooting

4

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 off both your computer and the monitor.

2.

Unplug the video cable from the back of the computer. To ensure proper Self­Test 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.

Dell UltraSharp U2515H

or

Dell UltraSharp U2515H

or

54 | Troubleshooting

Dell UltraSharp U2515H

mDP Cable

or

Dell UltraSharp U2515H

DP Cable

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 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.

54321

Troubleshooting | 55

To run the built-in diagnostics:

1.

Ensure 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 and Button 4 on the front panel simultaneously for 2
seconds. A gray screen appears.

4.

Carefully inspect the screen for abnormalities.

5.

Press Button 4 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 4 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.

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,

What You

Experience

No picture

No picture or no
brightness

blurry, or ghosting

56 | Troubleshooting

Possible Solutions

Ensure that the video cable connecting 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 depressed fully.

∞

Ensure that the correct input source is selected via

∞

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 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.

Shaky/Jittery
Video

Missing Pixels LCD screen has

Stuck-on Pixels LCD screen has

Brightness
Problems

Geometric
Distortion

Horizontal/
Vertical Lines

Synchronization
Problems

Safety Related
Issues

Intermittent
Problems

Wavy picture or
fine movement

spots

bright spots

Picture too dim or
too bright

Screen not
centered correctly

Screen has one or
more lines

Screen is
scrambled or
appears torn

Visible signs of
smoke or sparks

Monitor
malfunctions on &
off

Reset the monitor to Factory Settings(Factory

∞

Reset).
Check environmental factors.

∞

Relocate the monitor and test in another room.

∞

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: http://www.
dell.com/support/monitors.

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:http://www.
dell.com/support/monitors.

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.

∞

Reset the monitor to Factory Settings(Factory

∞

Reset).
Perform monitor self-test feature check to

∞

determine if the scrambled screen appears in self­test 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 self­test mode.

Troubleshooting | 57

Missing Color Picture missing

Wrong Color Picture color not

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

Wireless mouse
is not working or
lagging

Video Ghosting or
Overshooting

color

good

Faint shadow from
the static image
displayed appears
on the screen

Do not respond or
responds slowly

Moving image
appears to have
trailing shadow or
bright edge.

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.
Change the Color Setting Mode in the Color

∞

Settings OSD to Graphics or Video depending on
the application.

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 YPbPr in

∞

the Color settings OSD.
Run the built-in diagnostics.

∞

Use the Power Management feature to turn off

∞

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

Alternatively, use a dynamically changing

∞

screensaver.
Increase the distance between the USB 3.0

∞

peripherals and the wireless USB receiver.
Position your wireless USB receiver as close as

∞

possible to the wireless mouse.
Use a USB-extender cable to position the wireless

∞

USB receiver as far away as possible from the USB

3.0 port.
Change the Response Time in the Display OSD to

∞

Fast or Normal depending on your application and
usage.

Product-Specific Problems

Specific

Symptoms

Screen image is
too small

Cannot adjust the
monitor with the
buttons on the
side panel

58 | Troubleshooting

What You

Experience

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

OSD does not
appear on the
screen

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,

∞

press and hold the button above the Power button
for 10 seconds to unlock (for more information, see

Lock).

Possible Solutions

No Input Signal
when user
controls are
pressed

The picture does
not fill the entire
screen

No picture, the
LED light is white

The picture
cannot fill the
height or width of
the screen

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. Replug the signal cable if necessary.
Reset the computer or video player.

∞

Due to different video formats (aspect ratio) of

∞

DVDs, the monitor may display in full screen.
Run the built-in diagnostics.

∞

Troubleshooting | 59

Universal Serial Bus (USB) Specific Problems

Specific

Symptoms

USB interface is
not working

High Speed USB

3.0 interface is
slow

What You

Experience

USB peripherals
are not working

High Speed USB

3.0 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).
Switch Off and then turn On the monitor again.

∞

Reboot the computer.

∞

Some USB devices like external portable HDD

∞

require higher electric current; connect the device
directly to the computer system.

Check that your computer is USB 3.0-capable.

∞

Some computers have USB 3.0, 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.

∞

Mobile High-Definition Link (MHL) Specific Problems

Specific

Symptoms

MHL interface is
not working

What You

Experience

Cannot see MHL
device image
shown on monitor

Possible Solutions

Ensure your MHL cable and MHL device are MHL

∞

certified.
Check your MHL device is turned On.

∞

Check your MHL device is not in Standby mode.

∞

Check physical MHL cable connection is

∞

corresponding to input source selected on OSD
Menu i.e., HDMI (MHL) 1 or HDMI (MHL) 2.

Wait for 30 seconds after connecting MHL cable as

∞

some MHL devices require longer recovery time.

60 | Troubleshooting

Appendix

5

WARNING: Safety Instructions

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 Product Information Guide.

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.

Contact Dell

For customers in the United States, call 800-WWW-DELL (800-999-3355).

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:

1.

Visit www.dell.com/support/monitors.

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

1.

Visit www.dell.com/support.

2.

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

3.

Click Contact Us on the left side of the page.

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 | 61

Setting Up Your Monitor

Setting the display resolution

For maximum display performance with Microsoft® Windows® operating systems, set
the display resolution to 2560 x 1440 pixels by performing the following steps:

In Windows® 7, Windows® 8 and Windows® 8.1:

1.

For Windows® 8 and 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.

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.

If you have a Dell™ desktop or a Dell™ portable computer
with internet access

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.

If you have a non Dell™ desktop, portable computer, or
graphics card

In Windows® 7, Windows® 8 and Windows® 8.1:

1.

For Windows® 8 and 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, ATI, Intel etc.).

6.

Refer to the graphic card provider website for updated driver (for example,

http://www.ATI.com OR http://www.NVIDIA.com).

62 | Appendix

7.

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
will support the video resolution.

Appendix | 63