Screen Tearing 6770m

I've tried the default HP drivers, 11.5b hotfix, 11.7, 11.8, and 11.9 and all of these drivers are creating this horizontal screentearing thing in a lot of my applications.

anyone have an idea what could be the cause? it's tearing like in this image:

http://en.wikipedia.org/wiki/File:Tearing_(simulated).jpg

Some things like justin.tv streams, starcraft 2, mass effect 2, and probably other things do NOT have this problem but things like youtube videos, borderlands, crysis 2, battlefield 3 beta to some extent, all show this horizontal screen tearing.

I'm not overclocking. I've even tried underclocking to see if it would have any effect and it didn't. And I've just recently reinstalled Windows trying to solve the issue and it's still there. Even the intel graphics do it but to a much lesser degree and would probably be unnoticable if I wasn't looking for it.

And it has nothing to do with vsync because I've already went down that path..

anyone have any ideas ? ?

 

so i'm not sure if I just got lucky but I upgraded from 11.5b CCC + 11.7 driver to 11.5b CCC + 11.8 (found at this link http://www2.ati.com/DriVeRs/mobile/11-8_mobility_vista_win7_64_dd_ccc_ocl.exe) and now the horizontal tear I was seeing in youtube videos is gone

i'll try it more later

edit: well after playing starcraft 2 for a few hours and watching another youtube video, the screen tearing was back >.>

this is seriously getting stupid

 

ok so it seems playing starcraft 2 somehow is causing my tearing in other applications. if I play the game then immediately watch a video, there will be tearing. however, if I switch to power saving then switch back to high performance, there will be no tearing.

so it's a fix. sort of .. but at least I can play borderlands with no screen tearing

 

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One time I noticed some tearing in a video I was watching in Media Player Classic. I tried switching to the Intel Graphics and back to the 6770 the tearing was gone.

 

yep, this is the same thing that fixed my issue. switching to intel then switching back.

it seems, at least in my case, that playing starcraft 2 causes other applications to tear at least until i switch to intel and back

 

I found switching between the two fixes it for me too.

I have a feeling its because the information on when the screen updates so it can sync isn't communicated to the AMD card properly. I've never had vsync issues and screen tearing on the Intel graphics, just AMD.

 

I'm having the same problem. Did anyone find a proper solution?