Dell U2518d Monitor UltraSharp User’s Guide User Manual Ultra Sharp User's En Us

User Manual: Dell dell-u2518d-monitor Dell UltraSharp U2518D User’s Guide

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Dell UltraSharp
U2518D/U2518DX/U2518DR
User’s Guide

Model: U2518D/U2518DX/U2518DR
Regulatory model: U2518Dt

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. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks
are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective
owners.
2017 – 05
Rev. A00

Contents
About Your Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Package Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Product Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Identifying Parts and Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Monitor Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Plug-and-Play . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
LCD Monitor Quality and Pixel Policy . . . . . . . . . . . . . . . . . . . . . . 22

Setting Up the Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Attaching the Stand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Using the Tilt, Swivel, and Vertical Extension . . . . . . . . . . . . . . . . . . 26
Adjusting the Rotation Display Settings of Your System . . . . . . . . . . . 27
Connecting Your Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Organizing Your Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Removing the Monitor Stand . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Wall Mounting (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Operating the Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Turning on the Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Using the Front Panel Controls . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Using the On-Screen Display (OSD) Menu . . . . . . . . . . . . . . . . . . . 35

Contents

| 3

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Built-in Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Common Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Product Specific Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
FCC Notices (U.S. only) and Other Regulatory Information . . . . . . . . . 54
Contacting Dell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Setting Up Your Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Maintenance Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

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

Stand riser

Stand base

Power cable (varies by country)

About Your Monitor

| 5

USB 3.0 upstream cable (enables the
USB ports on the monitor)

DP cable (DP to mDP, only for
U2518D)

HDMI cable (U2518DX & U2518DR)

• Drivers and documentation media
• Quick Setup Guide
• Safety,Environmental,and
Regulatory Information
• Factory Calibration Report

Product Features

The Dell UltraSharp U2518D/U2518DX/U2518DR monitor has an active matrix, thinfilm
transistor (TFT), liquid crystal display (LCD), and LED backlight. The monitor features
include:
• 63.44 cm (25-inch) active area display (Measured diagonally) 2560 x 1440 resolution,
plus full-screen support for lower resolutions.
• Wide viewing angles with 99% sRGB color.
• Tilt, swivel, pivot and vertical extension adjustment capabilities.
• Removable pedestal and Video Electronics Standards Association (VESA™) 100 mm
mounting holes for flexible mounting solutions.
• Ultra-thin bezel minimizes the bezel gap in multi-monitor usage, enabling easier set up
with an elegant viewing experience.
• Extensive digital connectivity with DP, mDP, HDMI, and USB 3.0 helps future-proof
your monitor.
• Plug and play capability if supported by your system.
• 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), Dell Display Manager software application and product
documentation. Dell Display Manager included (comes in the CD attached with the
monitor).
• Security lock slot.
• Asset Management Capability.
• Arsenic-Free glass and Mercury Free for Panel only.
• Energy Gauge shows the energy level being consumed by the monitor in real time.

6 |

About Your Monitor

• 0.5 W standby power when in the sleep mode.
• Optimize eye comfort with a flicker-free screen.
• The possible long-term effects of blue light emission from the monitor may cause
damage to the eyes, including eye fatigue or digital eye strain. ComfortView feature is
designed to reduce the amount of blue light emitted from the monitor to optimize eye
comfort.

Identifying Parts and Controls
Front view

Label
1
2

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

About Your Monitor

| 7

Back View

Label Description

Use

VESA mountiong holes (100 mm
x 100 mm-behind attached VESA
cover)

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

Regulatory label

Lists the regulatory approvals.

Stand release button

Release stand from monitor.

Security lock slot

Secures monitor with security cable lock
(sold separately).

Barcode, serial number, and Service
Tag label

Refer to this label if you need to contact Dell
for technical support.

Cable management slot

Use to organize cables by placing them
through the slot.

Side View

USB downstream port
Port with
battery icon supports BC 1.2.

8 |

About Your Monitor

Bottom View

Label

Description

Use

AC power connector

To connect the monitor power cable.

HDMI connector

Connect your computer with HDMI cable(optional).

DP connector (in)

Connect your computer with DP cable.

mDP connector (in)

Connect your computer with mDP to DP cable.

DP connector (out)

DP 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 MST Function”.
NOTE: Remove the rubber plug when use DP out
connector.

Audio line-out port

USB upstream port

Connect speakers to playback audio coming through
HDMI or DP audio channels.
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.
Connect the USB cable that comes with your monitor
to the computer. Once this cable is connected, you
can use the USB downstream connectors on the
monitor.

USB downstream ports (2) Connect your USB device. You can only use this
connector after you have connected the USB cable
to the computer and USB upstream connector on the
monitor.Port with
battery icon supports BC
1.2.

Stand lock

Lock the stand to the monitor using a M3 x 6 mm
screw (screw not included).

About Your Monitor

| 9

Monitor Specifications
Screen type

Active matrix - TFT LCD

Panel Type

In-plane switching Technology

Aspect ratio

16:9

Viewable image dimensions
Diagonal

63.44 cm (25 inches)

Active Area
Horizontal

552.96 mm (21.77 inches)

Vertical

311.04 mm (12.25 inches)
171992.7 mm2 (266.59 inches2)

Area
Pixel pitch

0.216 mm x 0.216 mm

Pixel per inch (PPI)

117.5

Viewing angle
Horizontal
Vertical
Brightness

178° (typical)
178° (typical)
350 cd/m² (typical)

Contrast ratio

1000 to 1 (typical)

Display screen coating

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

Backlight

LED

Response Time (Gray to Gray)

5 ms (FAST mode)
8 ms (NORMAL mode)

Color depth

16.78 million colors

Color gamut

99% sRGB
99% REC709
79% DCI-P3

Calibration accuracy

Delta E < 2 (average)

Connectivity

• 1 x DP 1.2 (HDCP 1.4)
• 1 x mDP 1.2 (HDCP 1.4)
• 1 x DP 1.2 (out) with MST (HDCP 1.4)
• 1 x HDMI2.0 (HDCP 2.2)
• 2 x USB 3.0 downstream port
• 2 x USB 3.0 with BC1.2 charging capability at 2A
(max)
• 1 x USB 3.0 upstream port
• 1 x Analog 2.0 audio line out (3.5mm jack)

10 |

About Your Monitor

Border width (edge of monitor to
active area)

7.30 mm (Top)
7.30 mm (Left/Right)
8.80 mm (Bottom)

Adjustability
Height adjustable stand

130 mm

Tilt

-5° to 21°

Swivel

-45° to 45°

Cable management

Yes

Dell Display Manager (DDM)
Compatibility

Easy Arrange
and other key features

Security

Security lock slot (cable lock sold separately) Antitheft stand lock slot (to panel)

Resolution Specifications
Horizontal scan range

30 kHz to 140 kHz (HDMI2.0)
30 kHz to 88 kHz (Other)

Vertical scan range

56 Hz to 76 Hz

Maximum preset resolution

2560 x 1440 at 60 Hz

Video display capabilities
(DP & HDMI playback)

480i, 480p, 576i, 576p, 720p, 1080i, 1080p, 1440p

About Your Monitor

| 11

Preset Display Modes
Display Mode

Horizontal
Frequency
(kHz)

Vertical
Frequency
(Hz)

Pixel Clock
(MHz)

Sync Polarity
(Horizontal/
Vertical)

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, 1600 x 1200

75.0

60.0

162.0

+/+

VESA, 1920 x 1080

67.5

60.0

148.5

+/+

VESA, 2048 x 1080

66.58

60.0

147.16

+/-

CVR, 2560 x 1440

88.8

60.0

241.5

+/-

12 |

About Your Monitor

MST Multi-Stream Transport (MST) Modes
MST Source Monitor

Maximum number of external monitor that can be
supported
2560 x 1440/60 Hz

2560 x 1440/60 Hz

NOTE: Maximum external monitor resolution supported is 2560x1440 60Hz only.

Electrical Specifications
Video input signals

• Digital video signal for each differential line
Per differential line at 100 ohm impedance
• DP/HDMI signal input support

Input voltage/ frequency/current
Inrush current

100-240 VAC / 50 or 60 Hz ± 3 Hz / 1.6 A (maximum)
120 V: 40 A (Max.)
240 V: 80 A (Max.)

Physical Characteristics
Connector type

• DP connector (include DP in and DP out)
• mDP connector
• HDMI connector
• Audio line-out
• USB 3.0 upstream port connector
• USB 3.0 downstream port connector x 4
(Port with
battery icon supports BC 1.2.)

Signal cable type

DP to mDP 1.8 M cable(only for U2518D)
HDMI 1.8 M cable(U2518DX & U2518DR)
USB 3.0 1.8 M cable

Dimensions (with stand)
Height (extended)

527.2 mm (20.76 inches)

Height (compressed)

397.2 mm (15.64 inches)

Width

567.6 mm (22.35 inches)

Depth

200.1 mm (7.88 inches)

Dimensions (without stand)
Height

331.5 mm (13.05 inches)

Width

567.6 mm (22.35 inches)

About Your Monitor

| 13

Depth

49.2 mm (1.94 inches)

Stand dimensions
Height (extended)

432.7 mm (17.04 inches)

Height (compressed)

386.5 mm (15.21 inches)

Width

292.4 mm (11.50 inches)

Depth

200.1 mm (7.88 inches)

Weight
Weight with packaging

8.33 kg (18.36 lb)

Weight with stand assembly and 6.24 kg (13.76 lb)
cables
Weight without stand assembly 3.42 kg (7.54 lb)
(For wall mount or VESA mount
considerations - no cables)
Weight of stand assembly
2.47 kg (5.45 lb)

Environmental Characteristics
Compliant Standards
ENERGY STAR certified Monitor yes
EPEAT
EPEAT Gold registered in the U.S. EPEAT registration
varies by country. See www.epeat.net for registration
status by country.
TCO Certified Display
yes
RoHS Compliant
yes
BFR/PVC Free monitor
yes
(excluding external cables)
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
Non-operating
Thermal dissipation

14 |

About Your Monitor

5,000 m (16,404 ft) (maximum)
12,192 m (40,000 ft) (maximum)
375.32 BTU/hour (maximum)
102.36 BTU/hour (typical)

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
Active

Vertical Video Power Indicator
Sync
Active
Active White

Inactive

Inactive Off

Switch off

White
(Glowing)
Off

Power Consumption
110 W (maximum)**
30 W (typical)
Less than 0.5 W
Less than 0.3 W

Energy Star
PON

Power Consumption
23.2 W***

ETEC

72.4 kWh****

The OSD operates only in the normal operation mode. If you press any button in the activeoff 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

About Your Monitor

| 15

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.
NOTE: This monitor is ENERGY STAR -compliant.

16 |

About Your Monitor

Pin Assignments
DP connector (in)

Pin number

20-pin side of the connected signal cable

ML3(n)

GND

ML3(p)

ML2(n)

GND

ML2(p)

ML1(n)

GND

ML1(p)

ML0(n)

GND

ML0(p)

CONFIG1

CONFIG2

AUX CH (p)

GND

AUX CH (n)

Hot Plug Detect

Return

DP_PWR

About Your Monitor

| 17

DP connector (out)

Pin number

20-pin side of the connected signal cable

ML0(p)

GND

ML0(n)

ML1(p)

GND

ML1(n)

ML2(p)

GND

ML2(n)

ML3(p)

GND

ML3(n)

CONFIG1

CONFIG2

AUX CH(p)

GND

AUX CH(n)

Hot Plug Detect

Return

DP_PWR

18 |

About Your Monitor

mDP connector

Pin number

20-pin side of the connected signal cable

GND

Hot Plug Detect

ML3 (n)

CONFIG1

ML3 (p)

CONFIG2

GND

ML2 (n)

ML0 (p)

ML2 (p)

ML0 (p)

GND

ML1 (n)

AUX (p)

ML1 (p)

AUX (n)

GND

DP_PWR

About Your Monitor

| 19

HDMI connector

Pin number

19-pin side of the connected signal cable

TMDS DATA 2+

TMDS DATA 2 SHIELD

TMDS DATA 2-

TMDS DATA 1+

TMDS DATA 1 SHIELD

TMDS DATA 1-

TMDS DATA 0+

TMDS DATA 0 SHIELD

TMDS DATA 0-

TMDS CLOCK+

TMDS CLOCK SHIELD

TMDS CLOCK-

CEC

Reserved (N.C. on device)

DDC CLOCK (SCL)

DDC DATA (SDA)

DDC/CEC Ground

+5 V POWER

HOT PLUG DETECT

20 |

About Your Monitor

Universal Serial Bus (USB)
This section gives you information about the USB ports available on your monitor.
NOTE: Up to 2 A on USB downstream port (port with
battery icon) with BC 1.2
compliance devices; up to 0.9 A on the other 3 USB downstream ports.
Your computer has the following USB ports:
• 1 upstream - bottom
• 4 downstream - 2 at left side, 2 at bottom
Power Charging Port - the ports with
battery icon supports fast current
charging capability if the device is BC 1.2 compatible.
NOTE: The monitor’s USB ports work 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.
Transfer speed

Data rate

Power consumption

SuperSpeed

5 Gbps

4.5 W (Max., each port)

Hi-Speed

480 Mbps

2.5 W (Max., each port)

Full speed

12 Mbps

2.5 W (Max., each port)

USB upstream port

USB downstream port

Pin number

Signal name

Pin number

Signal name

VBUS

D-

D+

GND

StdB_SSTX-

StdA_SSRX-

StdB_SSTX+

StdA_SSRX+

GND_DRAIN

StdB_SSRX-

StdA_SSTX-

StdB_SSRX+

StdA_SSTX+

Shell

Shield

Shell

Shield

About Your Monitor

| 21

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.

22 |

About Your Monitor

Setting Up the Monitor

Attaching the Stand
NOTE: The stand riser and stand base are detached when the monitor is shipped
from the factory.
NOTE: The procedure below is applicable for the default stand. If you purchased
any other stand, see the documentation shipped with the stand to set it up.
CAUTION: Place monitor of a flat, clean, and soft surface to avoid scratching the
display panel.

To attach the monitor stand:
1 Remove the monitor protective cover and place the monitor with its front facing
downward on it.
2 Insert the two tabs on the upper part of the stand to the groove on the back of
the monitor.
3 Press the stand down till it snaps into its place.

Setting Up the Monitor

| 23

• Hold the stand base with the triangle
mark
facing upward.

• Align the stand base protruded blocks to the matching slot on the stand.
• Insert the stand base blocks fully into the stand slot.

24 |

Setting Up the Monitor

• Lift the screw handle and turn the
screw clockwise.
• After fully tighten the screw, fold the
screw handle flat within the recess.

Setting Up the Monitor

| 25

Using the Tilt, Swivel, and Vertical Extension
NOTE: This is applicable for a monitor with a stand. If you purchased any other
stand, refer to the respective stand setup guide for set up instructions.

Tilt, Swivel and Vertical Extension
With the stand attached to the monitor, you can tilt the monitor for the most comfortable
viewing angle.

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

Rotating the Monitor
Before you rotate the monitor, your monitor should be fully vertically extended and fully
tilted up to avoid hitting the bottom edge of the monitor.

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

26 |

Setting Up the Monitor

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.).

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
2

Right-click on the desktop and click Properties.
Select the Settings tab and click Advanced.

If you have an AMD 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.

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 off your computer.
2 Connect the HDMI/DP-mDP/USB cable from your monitor to
the computer. (Vertically extend and tilt the monitor completely to rotate it for
cable connection. See Rotating the Monitor.)
3 Switch on your monitor.
4 Select the correct input source at Monitor OSD Menu and turn on your
computer.
NOTE: U2518D/U2518DX/U2518DR default setting is DP 1.2. DP 1.1 Graphic card
may not display normally. Please refer to “product specific problems – No image when
using DP connection to the PC” to change default setting.

Setting Up the Monitor

| 27

Connecting the HDMI cable(Optional)

Connecting the DP (or mDP) cable

NOTE: Default is DP port. Select input source on monitor to switch to mDP.

28 |

Setting Up the Monitor

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

NOTE: Supports the DP MST feature. To make use of this feature, your PC
Graphics Card must be certified to DP1.2 with MST option.
NOTE: Remove the rubber plug when use DP out connector.

Connecting the USB cable

Setting Up the Monitor

| 29

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.

Removing the Monitor Stand
CAUTION: To prevent scratches on the LCD screen while removing the
stand, make sure that the monitor is placed on a soft, clean surface.
NOTE: The procedure below is applicable for the default stand. If you purchased
any other stand, see the documentation shipped with the stand to set it up.
To remove the stand:
1

Place the monitor on a soft cloth or cushion.

Press and hold the stand-release button.

Lift the stand up and away from the monitor.

30 |

Setting Up the Monitor

Wall Mounting (Optional)

NOTE: Use M4 x 10 mm screws to connect the monitor to the wall-mounting kit.
Refer to the instructions that come with the VESA-compatible wall mounting kit.
1 Place the monitor 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 or CSA or GS-listed wall mount bracket with minimum
weight/load bearing capacity of 3.42 kg (7.54 lb).

Setting Up the Monitor

| 31

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.

32 |

Operating the Monitor

The following table describes the front panel buttons:
Front‑Panel Button

Description

Use this button to choose from a list of preset
color modes.
Shortcut key:
Preset Modes

Use this button to choose from a list of Input Source.

Shortcut key:
Input Source
3

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

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

5
Power (with power light
indicator)

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.

Operating the Monitor

| 33

Front‑Panel Button
Use the buttons on the front of the monitor to adjust the image settings.

Front Panel Button

Description

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

Down

Use the OK button to confirm your selection.

OK
3

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

Back

34 |

Operating the Monitor

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

4 Press the

and

5 Press

button once to activate the highlighted option.

buttons to select the desired parameter.

to enter the slide bar and then use the

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.

Operating the Monitor

| 35

Icon

Menu and
Submenus

Description

Brightness/
Contrast

Use this menu to activate Brightness/Contrast adjustment.

Brightness

Brightness adjusts the luminance of the backlight
(minimum 0; maximum 100).
Press the

Contrast

Input Source

36 |

button to increase brightness.

Press the
button to decrease brightness.
NOTE: Manual adjustment of Brightness is disabled when
Dynamic Contrast is switched on.
Adjust the Brightness first, and then adjust Contrast only if
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.
Use the Input Source menu to select between different
video inputs that are be connected to your monitor.

Operating the Monitor

Icon

Menu and
Submenus
DP

Description
Select DP input when you are using the DP (DisplayPort)
connector.

mDP

Use
to select the DP input source.
Select mDP input when you are using the
mDP (mini DisplayPort) connector.

HDMI

Use
to select the mDP input source.
Select the HDMI input when you are using the HDMI connector.
Use
to select the HDMI input source.

Auto Select
Reset Input
Source
Color

Use
to select Auto Select, the monitor scans for available
input sources.
Resets your monitor’s Input Source settings to the factory
defaults.
Use the Color menu to adjust the color setting mode.

Operating the Monitor

| 37

Icon

Menu and
Submenus

Description

Preset Modes When you select Preset Modes, you can choose Standard,
ComfortView, Movie, Game, Color Temp. 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.
NOTE: To reduce the risk of eye strain and neck/arm/back/
shoulders pain from using the monitor for long periods of time,
we suggest you to :
• Set the screen about 20 to 28 inches (50-70 cm) from your
eyes.
• Blink frequently to moisten or rewet your eyes when working
with the monitor.
• Take regular and frequent breaks for 20 minutes every two
hours.
• Look away from your monitor and gaze at a distant object at
20 feet away for at least 20 seconds during the breaks.
• Perform stretches to relieve tension in the neck/arm/back/
shoulders during the breaks.
• Movie: Ideal for movies.
• Game: Ideal for most gaming applications.
• Color Temp.: The screen appears warmer with a red/yellow tint
with slider set at 5,000K or cooler with blue tint with slider set
at 10,000K.

38 |

Operating the Monitor

Icon

Menu and
Submenus

Description
• 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.
NOTE: When Smart HDR is ON, Movie and Game preset modes
will operate with backlight local dimming.

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, DP-mDP cable.
YPbPr: Select this option if your DVD player supports only
YPbPr output.

Hue

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

Saturation

Use
or
to adjust the saturation from 0 to 100.
NOTE: Saturation adjustment is available only for Movie and
Game mode.
Resets your monitor’s color settings to the factory defaults.

Reset Color

Operating the Monitor

| 39

Icon

Menu and
Submenus

Description

Display

Use the Display menu to adjust image.

Aspect Ratio
Sharpness

Adjust the image ratio to Wide 16:9, 4:3, or 5:4.
Makes the image look sharper or softer.
Use
or
to adjust the sharpness from ‘0’ to ‘100’.

Dynamic
Contrast

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.
NOTE: when HDR is off, DCR can be set to on,otherwise can’t.
Allows you to set the Response Time to Normal or Fast.

Response
Time
MST
Smart HDR

DP Multi Stream Transport, Set to ON enables MST(DP out), Set
to OFF disables MST function.
Use

to enable or disable High-Dynamic Range.

Reset Display Restores the display settings to factory defaults.

40 |

Operating the Monitor

Icon

Menu and
Submenus

Description

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.

Language

Rotation

Set the OSD display to one of eight languages.
(English, Spanish, French, German, Brazilian Portuguese, Russian,
Simplified Chinese, or Japanese).
Rotates the OSD by 0/90/180/270 degrees.
You can adjust the menu according to your display rotation.

Transparency Select this option to change the menu transparency by using
Timer

and
(min. 0 / max. 100).
OSD Hold Time: Sets the length of time the OSD remains active
after you press a button.
Use the
and
buttons to adjust the slider in 1-second
increments, from 5 to 60 seconds.

Reset Menu

Restore the menu settings to factory defaults.

Operating the Monitor

| 41

Icon

Menu and
Submenus
Personalize

Description
Select from Preset Modes, Brightness/Contrast, Input
Source, Aspect Ratio,Smart HDR,Rotation set as shortcut key.

Power Button Allows you to set the state of the power light to save energy.
LED
USB
Allows you to enable or disable USB function during monitor
standby mode.

Monitor
Sleep
Reset
Personalization

42 |

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.
Sleep After Timeout: Monitor goes into sleep after timeout.
Never: Monitor never goes into sleep.
Restores shortcut keys to factory defaults.

Operating the Monitor

Icon

Menu and
Submenus

Description

Other

Display Info
DDC/CI

Select this option to adjust the OSD settings, such as the
DDC/CI, LCD conditioning, and so on.
Displays the monitor’s current settings.
DDC/CI (Display Data Channel/Command Interface) allows you
to adjust the monitor settings using software on your computer.
Select Off to turn off this feature.
Enable this feature for best user experience and optimum
performance of your monitor.

Operating the Monitor

| 43

Icon

Menu and
Submenus

Description

LCD
Conditioning

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

Firmware

Firmware version

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.

44 |

Operating the Monitor

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:

Operating the Monitor

| 45

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

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 user try to change preset mode when Smart HDR is ON, the following message will
show:

46 |

Operating the Monitor

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

See Troubleshooting for more information.

Operating the Monitor

| 47

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 off 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.

48 |

Troubleshooting

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.

Troubleshooting

| 49

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.

50 |

Troubleshooting

Common Problems
The following table contains general information about common monitor problems you might
encounter and the possible solutions:
Common
What You
Symptoms
Experience
No Video/Power No picture
LED off

No Video/Power No picture or no
LED on
brightness

Missing Pixels

LCD screen has
spots

Stuck-on Pixels

LCD screen has
bright spots

Brightness
Problems
Safety Related
Issues
Intermittent
Problems

Picture too dim
or too bright
Visible signs of
smoke or sparks
Monitor
malfunctions on
& off

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 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 selftest mode.

Troubleshooting

| 51

Common
Symptoms

What You
Experience

Missing Color

Picture missing
color

Wrong Color

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

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.
Picture color not • Change the settings of the Preset Modes in the
good
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.
Faint shadow
• Use the Power Management feature to turn off
from the static
the monitor at all times when not in use (for more
image displayed
information, see Power Management Modes).
appears on the
• Alternatively, use a dynamically changing
screen
screensaver.

Product Specific Problems
Specific
Symptoms
Screen image is
too small

No Input Signal
when user
controls are
pressed

What You
Experience
Image is
centered on
screen, but does
not fill entire
viewing area
No picture, the
LED light is white

The picture does The picture
not fill the entire cannot fill the
screen
height or width
of the screen

52 |

Troubleshooting

Possible Solutions
• Check the Aspect Ratio setting in the Display
menu OSD.
• Reset the monitor to factory settings.

• 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 different video formats (aspect ratio) of
DVDs, the monitor may display in full screen.
• Run the built-in diagnostics.

Specific
Symptoms
No image
when using DP
connection to
the PC

What You
Experience
Black screen

Possible Solutions
• Verify which DP standard (DP 1.1a or DP 1.2) is your
Graphics Card certified to. Download and install the
latest graphics card driver.
• Some DP 1.1a graphics card cannot support
DP 1.2 monitors. Go to OSD menu, under Input
Source selection, press and hold DP select
key for 8 sec to change the monitor setting from
DP 1.2 to DP 1.1a.

Troubleshooting

| 53

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.

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

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

54 |

Appendix

Setting Up Your Monitor
Setting Display Resolution to 2560 x 1440 (maximum)
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.

Appendix

| 55

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.

56 |

Appendix

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.

Appendix

| 57

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