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Artifacts on monitor

I have a nVidia 8600GT and it was connected to my monitor (VGA to DVI converter) and to my TV via s-video.
Irecently replaced the TV and unplugged the s-video cable from the backof the TV with the computer still on. Now my screen looks like thisONLY when I get to the login screen on Windows and ONLY when I amlogged into Ubuntu (boot screen looks fine on both OS)

I tried uninstalling drivers and reinstalling. Also tried removing and reinserting the card. No success.

I have reverted back to the on-board video and it works fine.... did I break my video card?

Screenshot: http://i35.tinypic.com/29zu6o3.png

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Ha.  Trippy bg and woven look.   It seems it's only like this in certain video modes, so I expect what happened was not that electrical damage happened from incaution with cables but that a DDR3 line came unsoldered when the S-Video socket was manipulated.  You can either sport around on the video card looking for the line by applying a q-tip with deionized water around the memory chips, just lightly squeeze the memory chips back into place...reflowing solder on the card, maybe.      Come to think of it, maybe there's a signal that S-Video is connected that did disaffect the line-scan circuitry to fail in that regular way; you can also try biasing elements of that connector's hook-up to the card (or just a longer cable, or a video switch) to see if that affects visual quality.
     Good job debugging your situation.  I hope the card goes back right with mere re-flexing. 

Posted on Nov 21, 2008

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Two possibilities
either drivers files gone bad or
the card gone bad.

try the card on other computer

Posted on Nov 17, 2008

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