Video problems, Product specific problems – Dell U2711 Monitor User Manual

Page 41

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Video Problems

 

 

Product Specific Problems

l

Adjust Phase and Pixel Clock controls via OSD.

l

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

l

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

NOTE:

When using 'DVI-D', the Pixel Clock and Phase adjustments are not available.

Synchronization Problems

Screen is scrambled or
appears torn

l

Reset the monitor to Factory Settings.

l

Perform Auto Adjust via OSD.

l

Adjust Phase and Pixel Clock controls via OSD.

l

Perform monitor self-test feature check to determine if scrambled screen appears in self

l

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

l

Restart the computer in the safe mode.

Safety Related Issues

Visible signs of smoke or
sparks

l

Do not perform any troubleshooting steps.

l

Contact Dell immediately.

Intermittent Problems

Monitor malfunctions on &
off

l

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

l

Reset the monitor to Factory Settings.

l

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

Missing Color

Picture missing color

l

Perform monitor self-test feature check.

l

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

l

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

Wrong Color

Picture color not good

l

Change the Color Setting Mode in the Color Settings OSD to Graphics or Video depending to the
application.

l

Try different Color Preset Settings in Color Settings OSD. Adjust R/G/B value in Color Settings OSD if the
Color Management is turned off.

l

Change the Input Color Format to PC RGB or YPbPr in the Advance Setting OSD.

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

l

Use the Power Management feature to turn off the monitor at all times when not in use (for more
information, see

Power Management Modes

).

l

Alternatively, use a dynamically changing screensaver.

No Sound

No sound from 5.1 channel
audio player through the
DP or HDMI

l

Ensure the audio cable connecting the monitor and the player is properly connected and secure .

l

5.1 channel Dolby or DTS format is unsupported and please set the audio output on your audio player to
pulse-code modulation (PCM) if available.

COMMON SYMPTOMS

WHAT YOU EXPERIENCE

POSSIBLE SOLUTIONS

No Video

No signal indicator is displayed

l

Check Video Input Selection

¡

Composite: Yellow colored RCA jack

¡

Component: Red, Blue, Green colored RCA jacks  

Low Quality DVD playback

Picture not crisp and some color distortion

l

Check DVD connection

¡

Composite gives good picture

¡

Component: Red, Blue, Green colored RCA jacks

Blinking Video

Video is blinking or discontinuous

l

Check DVD connection

¡

Composite gives good picture

¡

Component: Red, Blue, Green colored RCA jacks   

l

Check if DVD player is HDCP compliant.

¡

Some non-compliant players may exhibit blinking video and others will display a
raster screen.

No option for maximum resolution
2560x1440 in DVI or DP

The maximum resolution obtained via DVI
or DP is less than 2560x1440 (e.g.
1680x1050)

l

The source device must be capable for resolution 2560x1440

l

Ensure the DVI cable connecting the monitor and the computer is dual-link DVI cable

l

Recommend to use the dual-link DVI cable shipped with your monitor for max. resolution
2560x1440

SPECIFIC SYMPTOMS

WHAT YOU EXPERIENCE

POSSIBLE SOLUTIONS

Screen image is too small

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

l

Perform monitor reset on "Factory Reset"

Cannot adjust the monitor with
the buttons on the front panel

OSD does not appear on the screen

l

Turn the monitor off and unplug the power cord and then plug back and power on

The monitor will not go into

No picture, the LED light is blue. When

l

Move mouse or hit any key on the keyboard on the computer or activate video player, then

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