User's Manual

Troubleshooting 59
Missing Pixels LCD screen has spots •Cycle power on-o.
•Pixel that is permanently o 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-o.
•Pixel that is permanently o 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.
•Auto Adjust via OSD.
•Adjust brightness & contrast controls
via OSD.
Geometric Distortion Screen not centered
correctly
•Reset the monitor to Factory
Settings.
•Auto Adjust via OSD.
•Adjust brightness & contrast controls
via OSD.
NOTE: When using ‘DP’, the positioning
adjustments are not available.
Horizontal/Vertical
Lines
Screen has one or
more lines
•Reset the monitor to Factory
Settings.
•Perform Auto Adjust via OSD.
•Adjust Phase and Pixel Clock controls
via OSD.
•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.
NOTE: When using ‘DP’, the Pixel
Clock and Phase adjustments are not
available.