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Troubleshooting
Troubleshooting
WARNING: Before you begin any of the procedures in this section, follow the Safety instructions.
Self-Test
Your monitor provides a self-test feature that allows you to check whether your monitor is functioning properly. If your monitor and
computer are properly connected but the monitor screen remains dark, run the monitor self-test by performing the following steps:
1. Turn off both your computer and the monitor.
2. Disconnect all video cables from the monitor.
3. Turn on the monitor.
If the monitor cannot sense a video signal and is working correctly, the following message appears:
Figure 43. The message of No DP Cable
or
Figure 44. The message of No HDMI 1 Cable
or
Figure 45. The message of No HDMI 2 Cable
NOTE: The message may slightly vary according to the connected input signal.
NOTE: While in self-test mode, the power LED remains white.
4. This message also appears during normal system operation if the video cable gets disconnected or damaged.
5. Turn off your monitor, reconnect the video cable, and then turn on both the computer and the monitor.
If your monitor screen remains blank after performing the above steps, it indicates that the monitor is functioning properly. Check the
video controller and computer.
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