flickering only at 1920x1080

[Zivole]

now this is weird, i installed mass effect 2, cba to wait for the eyefinity fix anymore. but i knew i couldnt play it at 5760x1080, so i set resolution to 1920x1080 and it flickers all the time, seems like it is playing at 2 resolutions at once. so i lowered the res to 1600x900 and bam, no more flickering.
Same thing in WoW

any idea guys?`
And no, no problems with eyefinity yet

[Elmakai]

I tried ME2 at 1920x1080, and didn't seem to have the flickering problem. The only wierd thing I've noticed is when I used to play it at this resolution, it would be on my center screen. Now it is on my left screen. :?

[fluxetreflux]

now this is weird, i installed mass effect 2, cba to wait for the eyefinity fix anymore. but i knew i couldnt play it at 5760x1080, so i set resolution to 1920x1080 and it flickers all the time, seems like it is playing at 2 resolutions at once. so i lowered the res to 1600x900 and bam, no more flickering.
Same thing in WoW

any idea guys?`
And no, no problems with eyefinity yet

I've got the same problem with games in 1920x1080 on the center monitor connected with a native display port. In others resolutions (1280x1024) they work fine.
Didn't try to play with the others monitors (right or left). I'm using Catalyst 9.12 with Hotfix and W7 32 Ultimate...

[Downtown1]

I have the same problem here (and on every game I've tried!). Center monitor is 1920x1080 connected via DisplayPort. Using Catalyst 10.1.

Wonder if there is a workaround (e.g. switch center monitor to DVI?) I haven't tried yet.

[Zivole]

Okey, are you using adapters?
if so, what adapter? are you plugging it into the wall?
it would be nice to figure this out and give Ati a hand.
Or eventually figure out whats going on.

On the workaround part, i'd guess making hotkeys that disables every screen except a DVI one would work.

[Downtown1]

Nope, no adapters, just using a real displayport on my monitor.

[Zivole]

Hmmmm, so it probably aint the adapters fault then.
Could it be insufficient power for the monitor?
Maybe driver problems? Do u have the ability to try out 9.12 + hotfixes? I'm at school right now, so i dont have the opportunity.

Edit: Could also be a crossfire problem?
Edit 2: nvm above post had 9.12 with the same problems

[fluxetreflux]

Hmmmm, so it probably aint the adapters fault then.
Could it be insufficient power for the monitor?
Maybe driver problems? Do u have the ability to try out 9.12 + hotfixes? I'm at school right now, so i dont have the opportunity.

Edit: Could also be a crossfire problem?
Edit 2: nvm above post had 9.12 with the same problems

I'm running 9.12 + Hotfixes and the problem is there. But i disable Crossfire and now image is stable.

But something strange : the game is displaying on all monitors (same image repeated 3 times @ 1920x1080) and i lose my wallpaper when i disabled Crossfire with CCC ???

When i quit the game the resolution come back to 5760x1080.

I just try one game. I will check with others...

PS. : sorry for my poor english, i'm french !

[Zivole]

So crossfire is the problem?
I will check this as soon as i come home, + i will check if the new drivers fix it!
If it turns out to be Crossfire, i guess we'l have to check if ATI knows of the problem :)

BTW, are you 2 running W7?

[Downtown1]

flux is (look at his signature)

I'm running win7 ultimate 64-bit. Has anyone tried playing on their center monitor that's not a DisplayPort?

[Zivole]

Well, according to flux, crossfire seems to be the problem.
I made a DVI screen the main monitor, but when i started the game, it started on the DP monitor (i didnt bother moving the screens around, didnt quite see what it would do)
Havent tried disconnecting the DP monitor though.

P.S. 10.2 did not fix it. Havent tried disabling crossfire myself though... i don't know how to with 5970 :oops:

Guess we should try to figure it out, and contact ATI when we know it.
Sound like an idea?

[fluxetreflux]

There are two methods to disable CrossFire :

Method 1 :

Via the Ati icon notification in the taskbar :



You can see on this snapshot that there are six graphics cards, maybe another bug from CCC ?!? They were four before i disabled Crossfire...

Method 2 :

Via CCC :



I also noticed better performance with Crossfire disable while playing NFS Shift in Eyefinity @ 5760x1080 setup with AAx0 and see others settings below



For the moment, i think that there is a bad management of Crossfire with the Catalyst 9.12 and Hotfixes...

[noquarter]

Hmm I read something similar about desktop flickering on the 5xxx series.. wish I could find it now. But maybe the problem is similar.

I think it was something like this.. When in desktop mode a single Radeon would downclock to ~157MHz GPU/300MHz memory at below 1920x1080 resolution, and ~400MHz GPU/900MHz memory when at 1920x1080 or higher or with multiple monitors. If it downclocked to the lower speeds while at high resolution or multiple monitor the screens would flicker, hence the higher clock for higher resolution.

In Crossfire mode or when using the Overdrive settings there was a bug causing the GPU to downclock to 157/300 in 2d mode regardless of the resolution though, causing the flickering. Starting a 3d game even in windowed mode would cause it to detect 3d and ramp up the clocks though, stopping the flickering.

Perhaps this is related? Having the game windowed on a secondary screen causing it to not ramp up the clocks resulting in flickering? Maybe you can force the clocks up with RivaTuner or MSI's overclock tool or something?

[fluxetreflux]

Just come back on this old post to say that Official Catalyst 10.6 solved all my problems about flickering...

So long to wait but now it's so good... :rockout