Why does my monitor have a black screen but the power light is blinking green?

Posted by Chris Vesper on Super User See other posts from Super User or by Chris Vesper
Published on 2012-09-11T15:10:33Z Indexed on 2012/09/11 15:41 UTC
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monitor

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Troubleshooting

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hardware-failure

I have a ViewSonic VA912b 19" display I use as a secondary monitor. When I turn it on, the power light is green for a few seconds, and then switches to blinking green. The display stays black.

Windows thinks the monitor is on, as it shows up in the control panel as a second monitor.

If I unplug the DVI cable, it displays a "No Signal" message and the power light goes to amber, which means it went to sleep.

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