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6950 crossfire eyefinity P55 tearing/chessboard

Last response: in Graphics & Displays
March 22, 2011 1:31:30 AM

I would like to ask for help with this problem:
-3x24" LCD's, 1920x1080
-6950 on ASUS P55 mobo, (8x+8x lines)
2xDVI connection on card, miniDP->DP->Sapphire "active" adapter(without USB), eyefinity certified
everything works fine, thos framerates could be better..
I bought another 6950, made crossfire happen (1 or 2 bridges, no change) and there it was, ugly horrible tearing of screen + anything moving(like muzzle fure from shots,etc.) leaves chessboard effect, completely devasting experience..
Help please ?
March 22, 2011 2:07:01 AM

thanks for reply ) i really did some research, but i am prolly wrong .. are we talking bout d3doverrider? If not, where should i enable it ?
11.4 preview driver
March 22, 2011 2:13:52 AM

had Vsync on: "on, unless app specifies" and found the openGL settings :
triple buffering.. just checked it, goin to try
Related resources
March 22, 2011 2:17:24 AM

just tried metro 2033, chessboard is still there :(  tried to screenshot it, not able to catch it :)  (or it could not be screenshotted.. ?)
crysis and DA2 now..
March 22, 2011 2:22:34 AM

thanks, ur very kind, but it seems it's not working :( 
couple thoughts: not sure, but my friend came like a week b4 i bought a 2nd one, i tried 3dMark11 and maybe couple games, i don't remember it beign there.. :/ 

Another friend i due to come tommorow(today! :D ) with another one.. think it's gonna change something ? Seems to be pretty common thing, not just my bad luck with one card..
Btw. my 1st one is Sapphire, 2nd is Gigabyte.. B4 a week it was Gigabyte, tommorow it's gonna be Sapph also
March 22, 2011 2:24:01 AM

Atm it's 6950 Sapphire as primary + 6950 Gigabyte as secondary, 2 CD bridges @ 8x+8x lines
3x1080p lcd's , DVI+DVI+DP
March 22, 2011 2:26:37 AM

Sorry, can't edit messages :D  Seems like i forgot to mention it's bout Crossfinity :) 

My eyefinity was fine with one 6950, since i bought 2nd one it started
March 22, 2011 2:29:15 AM

I also noticed that cards are not utilized equally .. GPU1 - 82%, GPU2 - 92%
can't be good :( 
March 22, 2011 2:30:35 AM

I am using the MSI Afterburner + OSD.. thus the GPU utilization..

going to check it now, thank a ton for ur time
March 22, 2011 2:41:55 AM

metro 2033
ie. lowest

highest ~35

since i lowered it, there was much less chessboard/tearing..
Now back maxxed, i didn't notice any chess :/ 
Weird :)  Gonna test more
March 22, 2011 2:43:48 AM

Btw. cpu is i7-860 @ 3.6(HT on), utilization of 4 cores is 40-50% each..
March 22, 2011 3:02:29 AM

warhead :
(very wild gpu utilization differences..ranging from "the same" to "0%-90%"usually 50+60,30+90..every second different, but could be loading still.. loading was like 5mins (!) and i played like 1 min)

minimum, no AA
60 top(vsync?), 58 when quitting
March 22, 2011 3:03:58 AM

Switch off AA. You don't need it at that resolution.

in metro2033 its "AAA" or msaa4x only..not using AA, like u said.. just for the sake of testing
March 22, 2011 3:17:11 AM

I am sory, i don't understand :)  I am not the native speaker, obviously.

What was the point of testing max vs min settings ? :)  Seems like vsync IS causing the tearing .. crysis warhead minimum- 60 fps, vsync, chess
metro 2033 minimum, 74 fps, no vsync(right?no settings for it, but since it's more than 60..) and no chess(i believe, gonna confirm now)
March 22, 2011 3:32:11 AM

metro+warhead testing was done with:

Vsync-always on
triple buffering in CCC

+just retested the metro, chessboard still there

Configured msconfig, doin' restart now
March 22, 2011 3:33:16 AM

Yes, i do have RivaTuner, tho i am not using it.(but i am using d3d overrider)
Vsync-always on is set in CCC
March 22, 2011 3:44:18 AM

restarted with nothing on

metro cured ? :D 
crysis, DA2 still present :( 
March 22, 2011 3:46:47 AM

gonna try to start d3d now..
so .. i need to have :

vsync always on, openGL(rly for opengl i suppose only : ) triple buffering off
d3d : force vsync off, triple buffering on

so like vsync is not enabled on 2 places ?
March 22, 2011 3:56:26 AM

vsync on, only in CCC
triple on, only in d3d
metro seems fine, but crysis, dragon age 2, BFBC2 is not :( 
March 22, 2011 3:58:13 AM

Make sure your cards have the same BIOS version. If they are exactly the same it shouldn't be a problem, but you may want to check the manufacturer's site for an updated BIOS. Uninstall your current drivers, run driver sweeper to remove any settings they left behind, and then install the latest drivers.

I had the same problem with my 5870s when I bought a second one, but my first card was using an older BIOS and after I updated it I had to reinstall the drivers and then everything was peachy. It's kind of a pain since it seems most people who do crossfire don't have that problem when they add a second card, but there you go.
March 22, 2011 3:59:43 AM

Actually I had to re-install the drivers when I went from one 3850 to two of them a while back as well. Of course, those two cards were pretty different and the second one was factory OC'd. Oh well.
March 22, 2011 4:04:58 AM

thanks for reading up :) 
well, i do have different manufacturers actually, it's sapphire and gigabyte, tho both are reference cards, but i do believe i read something about Sapphire got some different VID so.. it's like they don't really like themselves :) 

Due in the evening i am promised that friend will come with his sapph 6950, so i am curious about that one

And also, i tried 11.2 and 11.4 drivers, with drivers sweeper and reg cleaning even, no prb there i hope
March 22, 2011 7:38:21 PM

no moar ideas ? :(  im gonna return it tommorow, the second card :(  too many worries bout that, rather be playing on normal details i guess
March 22, 2011 8:44:29 PM

Hey just to clear something up that has not been asked/said:

Did you install CAP4? (4 just released today for Crysis 2, otherwise CAP3 is fine)

(CAP: Crossfire Application Profiles)
March 22, 2011 9:29:40 PM

Please put up any future files on on a non-country TLD, and videos on youtube.

Does V-Sync affect the artifacts? If not don't enable it.
Since none of your mentioned games (BFBC2, Crysis, Metro) use OpenGL leave Triple-Buffering off.
Try plugging the 6950's in different slots, same with monitor cables.
Are you temps ok?