Dell U3415w Monitor User’s Guide User Manual User's En Us

User Manual: Dell dell-u3415w-monitor Dell U3415W Monitor User’s Guide

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Dell UltraSharp U3415W
User’s Guide

Model: U3415W
Regulatory model: U3415Wb

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.

____________________
Copyright © 2014-2016 Dell Inc. All rights reserved.
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.
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.

2016 - 07

Rev. A03

Contents
1

About Your Monitor . . . . . . . . . . . . . . . . . . . . . . . . .5
Package Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Product Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Identifying Parts and Controls . . . . . . . . . . . . . . . . . . . . . 8
Monitor Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Plug and Play Capability . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Universal Serial Bus (USB) Interface . . . . . . . . . . . . . . . . 22
LCD Monitor Quality and Pixel Policy. . . . . . . . . . . . . . . 23
Maintenance Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Setting Up the Monitor . . . . . . . . . . . . . . . . . . . . 25
Attaching the Stand. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Connecting Your Monitor . . . . . . . . . . . . . . . . . . . . . . . 28
Organizing Your Cables . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Attaching the Cable Cover . . . . . . . . . . . . . . . . . . . . . . . . 34
Removing the Monitor Stand. . . . . . . . . . . . . . . . . . . . . 35
Removing the Cable Cover . . . . . . . . . . . . . . . . . . . . . . . 35
Wall Mounting (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . 36

Operating the Monitor. . . . . . . . . . . . . . . . . . . . . 37
Power On the Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Using the Front Panel Controls . . . . . . . . . . . . . . . . . . . . 37
Using the On-Screen Display (OSD) Menu . . . . . . . . . . 39
Setting the Maximum Resolution . . . . . . . . . . . . . . . . . . 56
Using the Tilt, Swivel, and Vertical Extension. . . . . . . . . 57

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Built-in Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Common Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Product Specific Problems. . . . . . . . . . . . . . . . . . . . . . . 64
Universal Serial Bus (USB) Specific Problems . . . . . . . 65
Mobile High-Definition Link (MHL) Specific
Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Contents

Speakers Specific Problems . . . . . . . . . . . . . . . . . . . . . . .66

Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
FCC Notices (U.S. Only) and Other Regulatory
Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Contact Dell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Setting Up Your Monitor. . . . . . . . . . . . . . . . . . . . . . . . . 68

Contents

About Your Monitor

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

About Your Monitor

Power Cable (Varies by
Countries)

HDMI Cable

DP Cable (Mini-DP to DP)

USB 3.0 Upstream Cable
(Enables the USB Ports on
the Monitor)

• Drivers and
Documentation Media
• Quick Setup Guide
• Factory Calibration
Report
• Safety, Environmental,
and Regulatory
Information

About Your Monitor

Product Features
The Dell U3415W flat panel display has an active matrix, Thin-Film Transistor (TFT), Liquid
Crystal Display (LCD) and LED backlight. The monitor features include:
•

86.5 cm (34-inch) viewable area display (measured diagonally).
3440 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, and vertical extension 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 2.0, MHL,
USB 3.0 helps future proof your monitor.

•

Equipped with 2 USB upstream ports and 4 USB downstream ports.

•

Plug and play capability if supported by your system.

•

Color gamut of 99% sRGB 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.

•

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

•

Security lock slot.

•

Stand lock.

•

Capability to switch from wide aspect to standard aspect ratio while maintaining
the image quality.

•

U3415W 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.

•

Supports Picture by Picture (PBP) and Picture in Picture (PIP) Select mode.

About Your Monitor

Identifying Parts and Controls
Front View

Front panel controls

Label

Description

Function buttons (For more information, see
Operating the Monitor)

Power On/Off button (with LED indicator)

About Your Monitor

Back View

Back view with monitor stand
Label
1

Description
VESA mounting holes
(100 mm x 100 mm behind attached VESA
Cover)

Use
Wall mount monitor using VESA-compatible wall
mount kit (100 mm x 100 mm).

Regulatory label

Lists the regulatory approvals.

Stand release button

Releases stand from monitor.

Security lock slot

Secures monitor with security lock (security lock
not included).

Barcode serial number
label

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

USB downstream port*

Connect your USB device to this USB charging
port, which supports fast current charging
capability if the device is BC1.2 compatible. You
can only use this connector after you have
connected the USB cable to the computer and USB
upstream connector on the monitor.

Cable management slot

Use to organize cables by placing them through
the slot.

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

About Your Monitor

Side View

Bottom View

Bottom view without monitor stand
Label

Description

Use

AC power cord
connector

Connect the power cable.

MHL port connector

Connect your MHL devices with MHL cable.

HDMI port connector

Connect your computer with HDMI cable.

About Your Monitor

DisplayPort in
connector

Connect your computer with DP cable.

Mini DisplayPort in
connector

Connect your computer with Mini-DP to DP cable.

DisplayPort out (MST)
connector

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".

Audio-Line out

Connect your speakers.*

8
(1, 2)

USB upstream port

Connect the USB cable that came with your monitor
to the computer. Once this cable is connected, you
can use the USB connectors on the monitor.

9
(1, 2)

USB downstream port

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.**

Stand lock feature

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

* Headphone usage is not supported for the audio line out connector.
** It is recommended to use either the port (9-2) or the USB downstream port on the rear
side for your wireless USB device whenever possible.

Monitor Specifications
Flat Panel Specifications
Model

U3415W

Screen type

Active matrix - TFT LCD

Panel type

In Plane Switching

Viewable image
Diagonal

865.56 mm (34.08 inches)

Horizontal, Active Area

798.20 mm (31.43 inches)

Vertical, Active Area

334.80 mm (13.18 inches)

Area

267237.36 mm2 (414.22 inch2)

Pixel pitch

0.2325 mm x 0.2325 mm

About Your Monitor

Viewing angle

178° (vertical) typical
172° (horizontal) typical

Luminance output

300 cd/m² (typical)

Contrast ratio

1000 to 1 (typical)
2M to 1 (typical Dynamic Contrast On)

Faceplate coating

Anti-Glare with 3H hardness

Backlight

LED edgelight system

Response time

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

Color depth

1.074 billion colors

Color gamut

CIE1976 (91%), CIE 1931 (76%), and sRGB coverage 99%

Resolution Specifications
Model

U3415W

Horizontal scan range

30 kHz to 89 kHz (automatic)

Vertical scan range

48 Hz to 85 Hz (automatic)

Maximum preset resolution 3440 x 1440 at 60 Hz

Supported Video Modes
Model

U3415W

Video display capabilities
(HDMI & DP playback)

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

Preset Display Modes
Display Mode

Horizontal
Frequency (kHz)

Vertical
Frequency
(Hz)

Pixel Clock
(MHz)

Sync Polarity
(Horizontal/
Vertical)

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

-/-

About Your Monitor

VESA, 1024 x 768

60.0

75.0

78.8

+/+

VESA, 1152 x 864

67.5

75.0

108.0

+/+

VESA, 1280 x 800

49.3

60.0

71.0

+/-

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

+/-

VESA, 3440 x 1440

73.7

50.0

265.3

+/+

VESA, 3440 x 1440

88.8

60.0*

319.8

+/-

* Requires a graphics card that supports HDMI 2.0.

MHL Source Display Modes
Display Mode

Frequency (Hz)

640 x 480p

720 x 480p

720 x 576p

1280 x 720p

1920 x 1080i

1920 x 1080p

720 (1440) x 480i

720 (1440) x 576i

About Your Monitor

Multi-Stream Transport (MST) Modes
MST Source
Monitor

Maximum number of external monitor can be supported
3440 x 1440 at 60Hz

1920 x 1080 at 60Hz

3440 x 1440 at 60Hz

NOTE: Multi-Stream Transport modes are only available with DP1.2. See
Connecting the monitor for DP Multi-Stream Transport (MST) function for details.

Electrical Specifications
Model

U3415W
• Digital video signal for each differential line. Per
differential line at 100 ohm impedance.
• DP 1.2*/HDMI 2.0**/MHL 2.0 signal input support

Video input signals

AC input voltage/frequency/
current

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)

Inrush current

* Support DP1.2 specification, include HBR2, MST and DP audio.
** Not Support HDMI optional specification, include HDMI Ethernet Channel (HEC),
Audio Return Channel (ARC), standard for 3D format and resolutions.

Speaker Specifications
Model

U3415W

Speaker

2 x 9.0 W

Frequency Response

100 Hz - 20 kHz

Impedance

8 ohm

About Your Monitor

Physical Characteristics
Model

U3415W

Connector type

DP, black connector (include DP in and DP
out); Mini DisplayPort; HDMI; MHL; USB 3.0

Signal cable type

• 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

Dimensions (with stand)
Height (extended)

523.7 mm (20.62 inches)

Height (compressed)

408.7 mm (16.09 inches)

Width

824.7 mm (32.47 inches)

Depth

216.0 mm (8.50 inches)

Dimensions (without stand)
Height

372 mm (14.65 inches)

Width

824.7 mm (32.47 inches)

Depth

73.3 mm (2.89 inches)

Stand dimensions
Height (extended)

418.0 mm (16.46 inches)

Height (compressed)

370.8 mm (14.60 inches)

Width

245.0 mm (9.65 inches)

Depth

216.0 mm (8.50 inches)

Weight
Weight with packaging

17.50 kg (38.56 lb)

Weight with stand assembly and cables

11.25 kg (24.80 lb)

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

8.44 kg (18.60 lb)

Weight of stand assembly

2.36 kg (5.20 lb)

Front frame gloss

8%-13% gloss unit

About Your Monitor

Environmental Characteristics
Model

U3415W

Temperature
Operating

0 °C to 40 °C (32 °F to 104 °F)
• Storage: -20 °C to 60 °C (-4 °F to 140 °F)
• Shipping: -20 °C to 60 °C (-4 °F to 140 °F)

Non-operating
Humidity
Operating

10% to 80% (non-condensing)
• Storage: 5% to 90% (non-condensing)
• Shipping: 5% to 90% (non-condensing)

Non-operating
Altitude
Operating

5,000 m (16,404 ft) (maximum)

Non-operating

12,192 m (40,000 ft) (maximum)
• 443.58 BTU/hour (maximum)
• 187.67 BTU/hour (typical)

Thermal dissipation

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.
VESA Modes

Horizontal
Sync

Vertical
Sync

Normal
operation

Active

Active-off
mode

Inactive

Blanked

White (glowing)

Less than 0.5 W

Switch off

Off

Less than 0.5 W

Active

Video
Active

Power
Indicator
White

Power
Consumption
130 W (maximum)**
55 W (typical)

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

About Your Monitor

HDMI/MHL/Mini DisplayPort/DP input

HDMI/MHL input

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

About Your Monitor

Pin Assignments
DisplayPort Connector

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)

GND

AUX(p)

GND

AUX(n)

GND

Re-PWR

+3.3 V DP_PWR

About Your Monitor

Mini DisplayPort Connector

Pin
Number

20-pin Side of the
Connected Signal Cable

GND

Hot Plug Detect

ML3(n)

GND

ML3(n)

GND

ML2(n)

ML0(p)

ML2(p)

ML0(p)

GND

ML1(n)

AUX(p)

ML1(p)

AUX(n)

GND

+3.3 V DP_PWR

About Your Monitor

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

+5V POWER

HOT PLUG DETECT

About Your Monitor

MHL Connector

Pin
Number

19-pin Side of the
Connected Signal Cable

TMDS DATA 2+

TMDS DATA 2 SHIELD

TMDS DATA 2-

TMDS DATA 1+

GND

TMDS DATA 1-

MHL+

TMDS DATA 0 SHIELD

MHL-

TMDS CLOCK+

GND

TMDS CLOCK-

CEC

Reserved (N.C. on device)

DDC CLOCK (SCL)

DDC DATA (SDA)

GND

VBUS (+5V, 900mA maximum)

CBUS

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

Universal Serial Bus (USB) Interface
This section gives you information about the USB ports that are available on the monitor.
NOTE: This monitor is Super-Speed 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
compliance devices or normal USB devices.

USB Upstream Connector

Pin Number

9-pin Side of the Connector

VCC

D-

D+

GND

SSTX-

SSTX+

GND

SSRX-

SSRX+

About Your Monitor

lightning icon) with BC1.2

USB Downstream Connector

Pin Number

9-pin Side of the Connector

VCC

D-

D+

GND

SSRX-

SSRX+

GND

SSTX-

SSTX+

USB Ports
•

2 upstream - back

•

4 downstream - back

•

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

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.

About Your Monitor

Setting Up the Monitor

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 set up instructions.
CAUTION: Do not remove the monitor from the packaging box before attaching
the stand.
To attach the monitor stand:
1

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

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

Setting Up the Monitor

Attach the stand assembly to the monitor.
a

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

Press the stand down till it snaps into place.

Setting Up the Monitor

Place the monitor upright.
a

Slide one hand in the cutout area on the bottom cushion and use the other
hand to hold the stand.

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

CAUTION: Do not press on the panel screen when lifting the monitor.

Remove the cover from the monitor.

Setting Up the Monitor

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 cable from your monitor to the computer.

Connecting the HDMI cable

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

Setting Up the Monitor

Connecting the black DisplayPort (DP to DP) cable

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

NOTE: U3415W supports the DP MST feature. To make use of this feature, your PC
Graphics Card must be certified to DP 1.2 with MST option.
The default out of factory setting in the U3415W 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:

Setting Up the Monitor

A) Monitor is able to show content
1

Use OSD button to navigate to Display.

Go to DP 1.2 selection.

Select Enable or Disable accordingly.

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

Setting Up the Monitor

B) Monitor fails to show any content (blank screen)
buttons to highlight DP or mDP.

Use the

Press and hold the

The DisplayPort configuration message will appear.

Use the

and

button for approximately 8 seconds.

button to enable DP1.2 or

button to exit without making any

changes.
Repeat the above steps to change the setting back to DP1.1a if necessary.
CAUTION: The graphics are used for the purpose of illustration only. Appearance
of the computer may vary.

Setting Up the Monitor

Connecting the USB 3.0 cable
NOTE: To prevent data damage or loss, before changing USB upstream ports, make
sure that NO USB storage devices are in use by the computer connected to the
monitor’s USB upstream port.
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

a. Connect one computer: connect the upstream USB 3.0 port (cable supplied) to
an appropriate USB 3.0 port on your computer.
b. Connect two computers*: connect the upstream USB 3.0 ports to appropriate
USB 3.0 ports on the two computers. Then use the OSD menu to select between
the two USB upstream sources and input sources. See Toggle Switch PBP.

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

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

a. Connect one computer

b. Connect two computers
* When connecting two computers to the monitor, the monitor's USB downstream ports
for the keyboard and mouse can be assigned to different input signals from the two
computers by changing the USB Selection settings from the OSD menu. (See USB
Selection for details).

Setting Up the Monitor

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

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

Using the Mobile-High Definition Link (MHL)
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 message below, depending on MHL source
device's output.

To enable MHL connection, please perform the below steps:
1

Plug the power cable on your monitor into a AC outlet.

Connect the (micro) USB port on you MHL source device to MHL port on the
monitor with a MHL certified cable (See Bottom View for details).

Turn On the monitor and the MHL source device.

Select input source on monitor to MHL by using OSD Menu (See Using the OnScreen Display (OSD) Menu for details.)

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

Setting Up the Monitor

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.

Attaching the Cable Cover
NOTE: The cable cover is detached when the monitor is shipped from the factory.

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

Press the cable cover till it snaps into place.

Setting Up the Monitor

Removing the Monitor Stand
NOTE: To prevent the curved LCD screen from being scratched and damaged
while removing the stand, ensure that the monitor is placed on a soft, clean foam.
Direct contact with hard objects might cause damage to the curved monitor.
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 set-up instructions

.
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.

Removing the Cable Cover

Press the tab on the cable cover.

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

Setting Up 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.

Remove the stand.

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

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

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 8.8 kg.

Setting Up the Monitor

Operating the Monitor

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.

The following table describes the front panel buttons:

Operating the Monitor

Front Panel Button

Description
Use this button to directly access the Volume level bar.

Shortcut key/
Volume
Use this button to directly access the Input Source menu.

Shortcut key/
Input Source
Use the MENU button to launch the On-Screen Display
(OSD) and select the OSD Menu. See Accessing the Menu
System.

Menu
4

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

Exit
Use the Power button to turn the monitor On and Off.

Power
(with power light
indicator)

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

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

Front Panel Button

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

Operating the Monitor

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

Down
Use the OK button to confirm your selection.

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

Back

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) input

Operating the Monitor

Main Menu for digital (mDP) input

or
Main Menu for digital (DP) input

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

Press the

Press

Press
to enter the slide bar and then use the
and
to the indicators on the menu, to make your changes.

Select the

button once to activate the highlighted option.
and

button to select the desired parameter.

button to return to the main menu.

Operating the Monitor

buttons, according

Icon

Menu and
Submenus

Description

Brightness/
Contrast

Use this menu to activate Brightness/Contrast adjustment.

Brightness

Brightness adjusts the luminance of the backlight.
button to increase the brightness and press the
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.
button to increase the contrast and press the
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.

Operating the Monitor

Input Source Use the Input Source menu to select between the different video
signals that may be connected to your monitor.

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

mDP

Select the mDP input when you are using the Mini DisplayPort (mDP)
connector. Press
to select the Mini DisplayPort input source.

HDMI

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

MHL

Select the MHL input when you are using the MHL connector. Press
to select the MHL input source.

Color

Use Color to adjust the color setting mode.

Operating the Monitor

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.

Gamma

Allows you to set the Gamma to PC or MAC.

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.

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

Saturation

This feature can adjust the color saturation of the video image. Use
or
to adjust the saturation from '0' to '100'.
Press
image.
Press

to increase the monochrome appearance of the video
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
Settings
Display

Reset your monitor color settings to the factory settings.
Use Display to adjust image.

Aspect Ratio Adjusts the image ratio to Wide 21:9, Wide 16:9, Auto Resize, or 1:1.
Sharpness

Dynamic
Contrast

This feature can make the image look sharper or softer. Use
to adjust the sharpness from '0' to '100'.

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.

Response
Time
DP 1.1

Allows you to set the Response Time to Normal or Fast.
Press
to enable or disable DP 1.1. Follow the screen message to
confirm selection of DP1.2 or DP1.1a.
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.

Operating the Monitor

Uniformity Select screen uniformity compensation settings. Calibrated is factory
Compensation calibrated setting by default. Uniformity Compensation adjusts
different areas of the screen with respect to the center to achieve
uniform brightness and color over the entire screen. For optimal
screen performance, Brightness and Contrast for some preset modes
(Standard, Color Temp.) will be disabled when Uniformity
Compensation is turned On.

NOTE: User is advised to use factory default brightness setting when
Uniformity Compensation is turned on. For other brightness level
setting, the uniformity performance may deviate from the data shown
on the Factory Calibration Report.

Display Info

Displays the monitor's current settings.

Reset Display Select this option to restore default display settings.
Settings
PBP

This function brings up a window displaying image from another input
source.

Main Window
DP
mDP
HDMI
MHL

DP
X
X

Sub-Window
HDMI
mDP
X
X
X

MHL

NOTE: The images under PBP will be displayed at the center of the
screen, not full screen.

NOTE: When you use the PBP/PIP feature, the DP MST (Daisy Chain)
function is disabled.

Operating the Monitor

PBP Mode
Enable

Adjusts the PBP (Picture by Picture) mode to PIP (Picture in Picture),
PBP Aspect Ratio, or PBP Full. You can disable this feature by
selecting Off.
PIP

PBP Aspect Ratio

I
II

PBP FUll

I
PBP (Sub)

II
Off

Select between the different video signals that may be connected to
your monitor for the PIP/PBP sub-window.

Toggle Switch Select to switch between the USB upstream sources in PBP mode.
PBP
Contrast (Sub) Adjust the contrast level of the picture in PIP/PBP Mode.
Press the
button to increase the contrast and press the
button to decrease the contrast.

PIP Location Select PIP sub-window position.
or
to browse and
Use
Bottom-Right, or Bottom-Left.

to select Top-Left, Top-Right,

Operating the Monitor

USB Selection Select the USB upstream signals from the list: DP, mDP, HDMI, and
MHL, thus the monitor's USB downstream port (eg. keyboard and
mouse) can be used by the current input signals when connecting a
computer to either one of the upstream ports.
The display and USB upstream ports connection can be changed by
selecting the input source function.
When you use only one upstream port, the connected upstream port
is active.

NOTE: To prevent data damage or loss, before changing USB
upstream ports, make sure that NO USB storage devices are in use by
the computer connected to the monitor’s USB upstream port.

USB 1

Press

to Indicate the input signal for USB 1.

USB 2

Press

to Indicate the input signal for USB 2.

Operating the Monitor

Audio

Volume

Allows you to set the volume level of speakers.
Use

to adjust the volume level from '0' to '100'.

Audio Source Allows you to set the audio source from the main window or the subwindow.

Reset Audio
Settings

Select this option to restore default audio settings.

Operating the Monitor

Energy

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

Language

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 options set the OSD display to one of the eight languages
(English, Spanish, French, German, Brazilian Portuguese, Russian,
Simplified Chinese or Japanese).

Transparency Select this option to change the menu transparency by pressing the
and

Timer

OSD Hold Time: sets the length of time the OSD will remain active
after the last time you pressed a button.
or
Use
to 60 seconds.

Lock

buttons (Minimum: 0 ~ Maximum: 100).

to adjust the slider in 1 second increments, from 5

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

NOTE:
Unlock function– Only hard unlock (press and hold the button beside
the power button for 10 seconds).
Lock function – Either soft lock (through the OSD menu) or hard lock
(press and hold the button beside the power button for 10 seconds).

Reset Menu
Settings

Reset all OSD settings to the factory preset values.

Operating the Monitor

Personalize

Users can choose a feature from Preset Modes, Brightness/Contrast,
Input Source, Aspect Ratio, Volume, PBP Mode Enable, or Toggle
Switch PBP and set it as a shortcut key.

Others

Button Sound The monitor beeps every time a new option is selected in the menu.
This feature enables or disables the sound.

Operating the Monitor

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.

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

Reset Other
Settings

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

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.
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.

When the monitor does not support a particular resolution mode, you will 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 3440 x 1440.
You will see the following message before the DDC/CI function is disabled:

Operating the Monitor

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, one of the following messages will
appear depending on the selected input:
HDMI/MHL/Mini DisplayPort/DP input

HDMI/MHL input

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

Operating the Monitor

See Troubleshooting for more information.

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.

Right-click on the desktop and click Screen Resolution.

Click the Dropdown list of the Screen Resolution and select 3440 x 1440.

Click OK.

In Windows® 10:
1

Right-click on the desktop and click Display settings.

Operating the Monitor

Click Advanced display settings.

Click the dropdown list of Resolution and select 3440 x 1440.

Click Apply.

If you do not see 3440 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, and Vertical Extension
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.

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

Operating the Monitor

Vertical Extension
NOTE: The stand extends vertically up to 115 mm. The figure below illustrates how
to extend the stand vertically.

Dual-Monitor Setup
The recommended dual-monitor setup:
Landscape (side by side)

Operating the Monitor

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.

Unplug the video cable from the back of the computer. To ensure proper Self-Test
operation, remove all digital cables from the back of computer.

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.

Troubleshooting

This box also appears during normal system operation, if the video cable becomes
disconnected or damaged.

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

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

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

Unplug the video cable(s) from the back of the computer or monitor. The monitor
then goes into the self-test mode.

Press and hold Button 1 and Button 4 on the front panel simultaneously for 2
seconds. A gray screen appears.

Carefully inspect the screen for abnormalities.

Press Button 4 on the front panel again. The color of the screen changes to red.

Inspect the display for any abnormalities.

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.

Troubleshooting

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

What You
Experience

Possible Solutions

No Video/Power No picture
LED off

• 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.

No Video/Power No picture or no
LED on
brightness

•
•
•
•
•

Poor Focus

Picture is fuzzy,
blurry, or
ghosting

• Eliminate video extension cables.
• Reset the monitor to factory settings.
• Change the video resolution to the correct aspect ratio.

Shaky/Jittery
Video

Wavy picture or
fine movement

• Reset the monitor to factory settings.
• Check environmental factors.
• Relocate the monitor and test in another room.

Missing Pixels

LCD screen has
spots

• 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.

Stuck-on Pixels

LCD screen has
bright spots

• 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.

Brightness
Problems

Picture too dim
or too bright

• Reset the monitor to factory settings.
• Adjust brightness & contrast controls via OSD.

Geometric
Distortion

Screen not
centered
correctly

• Reset the monitor to factory settings.
• Adjust horizontal & vertical controls via OSD.

Troubleshooting

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.

Horizontal/
Vertical Lines

Screen has one
or more lines

• Reset the monitor to factory settings.
• 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.

Synchronization Screen is
Problems
scrambled or
appears torn

• Reset the monitor to factory settings.
• Perform monitor self-test feature check to determine if the
scrambled screen appears in self-test mode.
• Check for bent or broken pins in the video cable connector.
• Restart the computer in the safe mode.

Safety Related
Issues

Visible signs of
smoke or sparks

• Do not perform any troubleshooting steps.
• Contact Dell immediately.

Intermittent
Problems

Monitor
malfunctions on
& off

• Ensure that the video cable connecting the monitor to the
computer is connected properly and is secure.
• Reset the monitor to factory settings.
• Perform monitor self-test feature check to determine if the
intermittent problem occurs in self-test mode.

Missing Color

Picture missing
color

• 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.

Wrong Color

Picture color not
good

• Change the settings of the Preset Modes in the Color menu
OSD depending on the application.
• Adjust R/G/B value under Custom Color in Color menu
OSD.
• Change the Input Color Format to PC RGB or YPbPr in the
Color menu OSD.
• Run the built-in diagnostics.

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

Faint shadow
from the static
image displayed
appears on the
screen

• 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.

Troubleshooting

Product Specific Problems
Specific
Symptoms

What You
Experience

Possible Solutions

Screen image is Image is
too small
centered on
screen, but does
not fill entire
viewing area

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

Cannot adjust
the monitor
with the
buttons on the
front panel

• 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 beside the Power button for 10 seconds to
unlock (for more information, see Lock).

OSD does not
appear on the
screen

No Input Signal No picture, the
when user
LED light is white
controls are
pressed

• 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.

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

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

Troubleshooting

Universal Serial Bus (USB) Specific Problems
Specific
Symptoms

What You
Experience

Possible Solutions

USB interface is USB peripherals
not working
are not working

•
•
•
•
•
•

High Speed
USB 3.0
interface is
slow

• 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.

High Speed USB
3.0 peripherals
working slowly or
not working at all

Wireless mouse Do not respond
is not working or responds
or lagging
slowly

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.
• Disconnect one upstream USB cable when using two
upstream connections.

• 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.

Mobile High-Definition Link (MHL) Specific Problems
Specific
Symptoms
MHL interface
is not working

What You
Experience
Can not 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., MHL.
• Wait for 30 seconds after connecting MHL cable as some
MHL devices require longer recovery time.

Troubleshooting

Speakers Specific Problems
Specific
Symptoms
No sound
coming from
the speakers

What You
Experience

Possible Solutions

Cannot hear any
sound

• Turn Off the monitor, unplug the monitor power cord,
replug it, and then turn On the monitor.
• Check the audio cable connection is connected correctly
to the computer Audio Line Out port.
• Unplug the audio cable from the Audio Line Out port.
• Reset the monitor to factory settings.

Troubleshooting

Appendix

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 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.

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.

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

Click Contact Us on the left side of the page.

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

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

Appendix

Setting Up Your Monitor
Setting the display resolution
For maximum display performance with Microsoft® Windows® operating systems, set
the display resolution to 3440 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.

Right-click on the desktop and click Screen Resolution.

Click the Dropdown list of the Screen Resolution and select 3440 x 1440.

Click OK.

In Windows® 10:
1

Right-click on the desktop and click Display settings.

Click Advanced display settings.

Click the dropdown list of Resolution and select 3440 x 1440.

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.

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.

After installing the drivers for your graphics adapter, attempt to set the resolution to
3440 x 1440 again.
NOTE: If you are unable to set the resolution to 3440 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.

Right-click on the desktop and click Personalization.

Click Change Display Settings.

Click Advanced Settings.

Identify your graphics controller supplier from the description at the top of the
window (e.g. NVIDIA, ATI, Intel etc.).

Appendix

Refer to the graphic card provider website for updated driver (for example,
http://www.ATI.com OR http://www.NVIDIA.com).

After installing the drivers for your graphics adapter, attempt to set the resolution to
3440 x 1440 again.

In Windows® 10:
1

Right-click on the desktop and click Display settings.

Click Advanced display settings.

Click the dropdown list of Resolution and select 3440 x 1440.

Identify your graphics controller supplier from the description at the top of the
window (e.g. NVIDIA, ATI, Intel etc.).

Refer to the graphic card provider website for updated driver (for example,
http://www.ATI.com OR http://www.NVIDIA.com).

After installing the drivers for your graphics adapter, attempt to set the resolution to
3440 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

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Dell U3415w Monitor User’s Guide User Manual User's En Us

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