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• Perform Auto Adjust through OSD.
Shaky/jittery
video
Wavy picture
or fine
movement
• Adjust the Phase and Pixel Clock controls
through OSD.
• Reset the monitor to factory settings.
• Check environmental factors.
• Relocate the monitor and test in another
room.
• 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
• Perform Auto Adjust through OSD.
Screen not
centered
correctly
• Adjust horizontal and vertical controls
through OSD.
• When using HDMI/DisplayPort input, the
positioning adjustments are not available.
90 │ Troubleshooting