Sapphire 7850 2gb (no OC)
LG L226W 22" 60Hz LCD
AMD Catalyst™ 12.11 Beta
I have noticeable screen tearing (horizontal lines) in games and in cutscenes. I have tried Far Cry 3 and mafia II demo. Vsync seems to solve it, but it drops fps.
I am usin DVI to DVI cable between card and monitor (tried HDMI to DVI also, same problem). With furmark there is no visible tearing.
Any ideas ?
Vertical refresh in CCC fixes the screen tearing and i haven't noticed any drop in fps when enabling it, other than keeping it under 60fps obviously. I ran some benchmarks keeping it under 60 fps (average of 40) and there was absolutely no difference in the fps with vertical refresh on or off
So i removed all AMD/ATI stuff and installed 12.10 drivers, same problem. I tried also different cables (DVI-DVI/HDMI-DVI and DVI to VGA). I wonder if it is something thats is normal, no need to worry (maybe something with my monitor?) or is there a change that it is a GPU problem ? Unfortunately i dont have any other screens to test on.
Out of games i dont notice any tearing and in games vsync seems to help. Tearing also happens in places where my fps is below 60 (fraps).
Hmm that is odd. I mean there isn't a starting or ending point with tearing. Vsync normally helps however to my knowledge it helps with frames going beyond the refresh rate of your monitor. The video that Sumukh_Bhagat linked explains it so if your problems are solved with vsync that is good also maybe turning up settings in games could help as well. Say for example in Far Cry 3 if you have some settings turned down maybe turning it up will have vsync come in less.
It really doesn't sound like it's normal screen tearing. I have the same card and also play far cry 3 among many. Never had a problem I have only encountered screen tearing in skyrim before it was fixed in a patch.
Is your screen recognizd by Windows. Is it set to 60 hz in windows?
If in games Vsync are helping I doubt t's a faulty GPU at least. Sounds more like a problem with the screen.
Running unigen 3.0 there is a noticeble stutter in picture although fps is 60+ all the time (when it stutters there is a certain static noise in sound with it also). Maybe it is normal for unigen 3.0 ?
Dont know is has anything to do with thi current problem (vysing there wont help against this stutter).
And yes, it shows 60Hz for monitor under windows.