Dell P2719H Users Guide - Page 63

Quality and Pixel Policy, see Dell, When using HDMI/DisplayPort input

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Stuck-on Pixels Brightness Problems Geometric Distortion Horizontal/ Vertical Lines 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: http:// www.de l l.com/support/monitors. Picture too dim or • Reset the monitor to factory settings. too bright • Perform Auto Adjust via OSD. • Adjust brightness & contrast controls via OSD. Screen not • Reset the monitor to factory settings. centered correctly • Perform Auto Adjust via OSD. • Adjust horizontal & vertical controls via OSD. • When using HDMI/DisplayPort input, the positioning adjustments are not available. Screen has one or • Reset the monitor to factory settings. more lines • Perform Auto Adjust via OSD. • Adjust the 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. • Run the built-in diagnostics. • When using HDMI/DisplayPort input, the Pixel Clock and Phase adjustments are not available. 72 │ Troubleshooting

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72± ±
│
± ± 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:
http://
www.dell.com/support/monitors
.
Brightness
Problems
Picture too dim or
too bright
•
Reset the monitor to factory settings.
•
Perform
Auto Adjust
via OSD.
•
Adjust brightness & contrast controls
via OSD.
Geometric
Distortion
Screen not
centered correctly
•
Reset the monitor to factory settings.
•
Perform
Auto Adjust
via OSD.
•
Adjust horizontal & vertical controls
via OSD.
•
When using HDMI/DisplayPort input,
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 the
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.
•
Run the built-in diagnostics.
•
When using HDMI/DisplayPort input,
the
Pixel Clock
and
Phase
adjustments are not available.