Dell Alienware 27 Gaming AW2724HF Alienware AW2724HF Monitor Users Guide - Page 71
Troubleshooting, Self-test
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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. Unplug the video cable from the computer. 3. Turn on the monitor. A dialog box should appear on the screen, indicating that the monitor is working correctly and it is not receiving a video signal. While in self-test mode, the power LED remains white (default color). NOTE: This dialog box also appears during normal operation, if the video cable is disconnected or damaged. 4. Turn off your monitor and reconnect the video cable; then turn on both your computer and the monitor. After performing the above steps, if the monitor displays no video output, then the problem may be with the graphics card or the computer. Troubleshooting | 71