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From: Physfitfreak <Physfitfreak@gmail.com>
Newsgroups: comp.os.linux.advocacy,comp.bugs.misc
Subject: Flakey Video Output
Date: Thu, 28 Sep 2023 19:20:49 -0500
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When I turn one of my computers on, the video output is sometimes not 
there, and sometimes is. Computer always boots up normally, making the 
introductory sound of windows coming up, etc. But it is exactly like 
there's no monitor attached. It's not the cable or monitor. That much 
I've tested.

And on some other occasions the screen appears normally when I turn the 
computer on, and if I keep turning the computer off and then on screen 
always appears. On occasions that it won't come up, no matter how many 
times I turn the computer off and on, screen won't come up.

What could it be? Bios? Graphics card? The round 3 volt button battery? 
The electronics on MB itself? Anything like that anybody here 
experienced? This is the first for me. It can't be virus cause that 
computer is hermetically isolated from internet.

I tested the battery, it is still at least 3 volts. Should it be 5 volts?