Dell UltraSharp 38" 1600p Curved Monitor - Manual (Page 90)

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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:
www.dell.com/
pixelguidelines .
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:
www.dell.com/
pixelguidelines .
Brightness
problems Picture too dim or
too bright • Reset the monitor to factory settings.
• Adjust brightness and contrast
controls using the OSD.
Geometric
distortion Screen not
centered correctly Reset the monitor to factory settings.
Horizontal/
vertical lines Screen has one or
more lines • Reset the monitor to factory settings.
• 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.