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Screen goes dead after few seconds. Green light stays on. If I disconnect from pc it shows "signal lost"

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You need to try another screen if it is possible. Sounds like the screen you are using is about ready to die. I had one that would do something similar to that. The backlighting on the monitor went bad. Would come on for a few seconds and then go dark. You could just about make out the pictures but could not read the words at all. Had to get a replacement.

Trying another screen first will tell you if it is really the screen or video card.

Posted on Apr 05, 2011

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Posted on Jan 02, 2017

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What is VGA cable
VGA Cables Adapters Converters and Devices C2G

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