40 │ Troubleshooting
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.
• 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 ‘HDMI’, 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 ‘HDMI’, the Pixel
Clock and Phase adjustments are not
available.