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Dell P2418HZ
NOTE: This box also appears during normal system operation, if the
video cable is disconnected or damaged.
4. Turn Off your monitor and reconnect the video cable; then turn on your
computer and the monitor.
If your monitor remains dark after you reconnect the cables, check your video
controller and computer.
Built-in diagnostics
Your monitor has a built-in diagnostic tool that helps you determine if any screen
abnormality you experience is an inherent problem with your monitor, or with your
computer and video card.
NOTE: You can run the built-in diagnostics only when the video cable
is unplugged and the monitor is in self-test mode.
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To run the built-in diagnostics:
1. Ensure that the screen is clean (no dust particles on the surface of the
screen).
2. Unplug the video cable (s) from the back of the computer or monitor. The
monitor then goes into the self-test mode.
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Troubleshooting
Dell 24 Monitor
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No USB Type-C Cable
The display will go into Power Save Mode in 4 minutes.
www.dell.com/P2421DC
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P2421DC
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