Dell P2425 Monitor Users Guide - Page 90

Auto Adjust, Phase, Pixel Clock, Quality and Pixel Policy, see Dell Support

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Shaky/jittery video Missing pixels Stuck-on pixels Brightness problems Geometric distortion Wavy picture or fine movement LCD screen has spots LCD screen has bright spots Picture too dim or too bright Screen not centered correctl y • Perform Auto Adjust through OSD. • 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. • 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. • 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. • Adjust brightness and contrast controls using the OSD. • Reset the monitor to factory settings. • Perform Auto Adjust through OSD. • Adjust horizontal and vertical controls through OSD. • When using HDMI/DisplayPort input, the positioning adjustments are not available. 90 │ Troubleshooting

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90± ±
│
± ± Troubleshooting
Shaky/jittery
video
Wavy picture
or fine
movement
•
Perform
Auto Adjust
through OSD.
•
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.
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.
•
Perform
Auto Adjust
through OSD.
•
Adjust horizontal and vertical controls
through OSD.
•
When using HDMI/DisplayPort input, the
positioning adjustments are not available.