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Old 02-15-06, 03:58 PM   #4
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Join Date: Jun 2005
Posts: 388
Default Re: overlay jitter on 6600GT

This is on either DVI output (all 3 cards are dual-DVI), in the overlay area. That means WMP, WinDVD, PowerDVD, etc all show this same problem using overlays.

I upgraded my machine to the 81.98 driver, and the problem is 99.99% gone -- I can still catch a single-pixel jitter on a single line every few seconds, but it is almost impossible to notice. I am running 1600x1200. It is entirely gone when media is paused (overlay not being redraw).

But for my friend unfortunately, 81.98 didn't do anything to help his dual-DVI 6600GT overlay jitter problem. He is running 1920x1200. Jitter present when overlay is inactive.

The jitter is nasty. Each horizontal scanline in the overlay is continuously moving left and right independently by 1-2 pixels.

My brother's machine using 6600GT + DVI and 1280x1024 never seemed to have the problem either.

Yes, we have a lot of 6600GT cards...

*Curiously* the overlays in Linux/FreeBSD do not show the problem on the same machines! Windows driver problem?

[edit: Why does my post have an advertising hyper-link?]

Last edited by xorbe; 02-17-06 at 12:39 AM.
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