Question about Logitech Cordless Desktop EX110
That has nothing to do with the keyboard.. check your vga cable (the cable that connects your screen to your PC)
Posted on Jun 25, 2008
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Posted on Jan 02, 2017
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The floating 'Dell Self-test Feature Check' dialog box should appear on-screen on a black background if the monitor cannot sense a video signal and is working correctly. While in self-test mode, the power LED remains green. Also, depending upon the selected input, one of the dialogs shown below will continuously scroll through the screen.
If your monitor screen remains blank after you use the previous procedure, check your video controller and computer system; your monitor is functioning properly.
- This box also appears during normal system operation if the video cable becomes disconnected or damaged.
- Turn off your monitor and reconnect the video cable, then turn on both your computer and the monitor.
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