Common Problems - Dell P2423D User Manual

Common problems

The following table contains general information about common monitor problems
you might encounter and the possible solutions:
Common
Symptoms
No Video/Power
LED off
No Video/Power
LED on
Poor Focus
Shaky/Jittery
Video
│
66 Troubleshooting
What you
experience
No picture
No picture or no
brightness
Picture is fuzzy,
blurry, or ghosting
Wavy picture or
fine movement
Possible Solutions
Ensure that the video cable connecting
the monitor and the computer is properly
connected and secure.
• Verify that the power outlet is
functioning properly using any other
electrical equipment.
• Ensure that the power button is pressed.
• Ensure that the correct input source is
selected via the
• Increase brightness and contrast
controls using the OSD.
• Perform monitor self-test feature check.
• Check for bent or broken pins in the
video cable connector.
• Run the built-in diagnostics.
• Ensure that the correct input source is
selected via the
• Eliminate video extension cables.
• Reset the monitor to Factory Settings
(Factory Reset).
• Change the video resolution to the
correct aspect ratio.
• Reset the monitor to Factory Settings
(Factory Reset).
• Check environmental factors.
• Relocate the monitor and test in another
room.
Input Source menu.
Input Source menu.