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Common
What you
symptoms
experience
Missing pixels
LCD screen has
spots
Stuck-on pixels LCD screen has
bright spots
Brightness
Picture too dim
problems
or too bright
Geometric
Screen not
Distortion
centered
correctly
Horizontal/
Screen has one
Vertical Lines
or more lines
Synchronization
Screen is
Problems
scrambled or
appears torn
5. Trouble Shooting Instructions
Possible solutions
• 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,
https://www.dell.com/pixelguidelines.
• 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 PixelPolicy, see,
https://www.dell.com/pixelguidelines.
• Reset the monitor to factory settings.
• Adjust brightness and contrast controls through
OSD.
• Reset the monitor to factory settings.
• Auto adjust via OSD.
• Adjust horizontal & vertical controls via OSD.
• 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.
• Run the built-in diagnostics.
• 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 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 safe mode.
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