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• Cycle power On-Off.
Missing pixels
LCD screen has
spots
• 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: www.dell.com/
pixelguidelines.
• Cycle power On-Off.
Stuck-on pixels
LCD screen has
bright spots
• 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: www.dell.com/
pixelguidelines.
• Reset the monitor to factory settings.
Brightness
problems
Picture too dim or
too bright
• Adjust brightness and contrast
controls using the OSD.
Reset the monitor to factory settings.
Geometric
distortion
Screen not
centered
correctly
• Reset the monitor to factory settings.
Horizontal/
vertical lines
Screen has one or
more lines
• 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. For more
information, see Built-in diagnostics.
102 │ Troubleshooting