Dell P2815Q Monitor - Manual (Page 58)

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Troubleshooting
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/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 ‘DVI-D’, 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 ‘DVI-D’,
the Pixel Clock and Phase
adjustments are not available.
Synchronization
Problems Screen is scrambled or
appears torn. • 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 the
safe mode.