Dear Friends

Today is in some way a good day for information:

@CatalystCreator Andrew D
Update - we will have Brink and Witcher 2 hotfix driver released this week. (hoping in the next couple of days). Stay tuned.

So this week, we will have patch from CDP and drivers for ATI.

Sincerely

nice, i'm running decent, but any extra fps is always nice

nvidia still silent...

i must one of the lucky ones as i have no problem with nmy nvidia 570 card.

Excellent! I'm running the game almost perfect on my HD6850 but if they can smoothen out a few stutters then I'll be happy! Right now everything is great except I'm forced to choose betwen AA and SSAO, having both enabled leads to some micro-stuttering. I love my AA but at the same time SSAO makes everything look so purdy!

I'll probably finish the game before it releases but there is always play through #2 to look forward to!

Dear Friends

AMD Catalyst™ 11.5b hotfix - http://support.amd.com/us/kbarticles/Pages/AMDCatalyst115ahotfix.aspx

Last Updated
5/25/2011
Article Number
GPU-109

AMD Catalyst™ Driver 11.5b Hotfix Features:

Includes performance optimizations and resolves various quality issues for the upcoming release of Brink™
Resolves transcoding video lagging issues seen when converting multiple H.264 clips to MPEG2 Blu-ray video
Resolves the intermittent mouse cursor lag issue seen by some users
Resolves intermittent flickering issues seen in the following applications in a system using an AMD Radeon™ HD 6000 series graphics card with DDR3 memory and running in DirectX® 9 mode:
Civilization 5
Dead Rising 2
Fallout 3
Mafia 2
NBA 2010
ShenGuiChuanQi
Starcraft 2
Warcraft III
World of Warcraft
Support for additional Stereo 3D-capable displays:
Viewsonic V3D241wm-LED
3D Projectors
Enables AMD CrossFire™ scaling for Brink
Enables AMD CrossFire scaling for The Witcher 2
Improves performance for Dirt 3

CatalystCreator Andrew D
Please grab the official hotfix here: http://bit.ly/kjScZg - includes Witcher 2 CF scaling, Brink CF, and Dirt 3 gains.

CatalystCreator Andrew D
Yes this is the Witcher 2 hotfix - it should also slightly improve single GPU performance, but focus is CF support

CatalystCreator Andrew D
Also - New CAP will be released by Friday (please don't use the leaked 11.5 CAP2) - The new CAP will be called 11.5 CAP3

CatalystCreator Andrew D
Yes the 11.5b hotfix does include support for Radeon Mobility

Sincerely

so... the only improvement of this hotfix for the witcher 2 its crossfire scaling enabled?

I also found that the performance increased, but if you have a dual-GPU card or a Crossfire setup you will get light bleeding through surfaces. Which is 'fixed' by renaming The Witcher 2.exe to "Dirt3.exe", the strange lighting will stop but you will also take a hit on FPS.

Scaling works for my pair of ATI 5770's, but there is still light flare issues, [read: balls of light] with this hotfix and latest CAP. Disabling anti-aliasing in the configuration settings fixes this. But I happen to like having AA @ 4x even at 1920x1080 resolution, so it's not a great compromise.
Until ATI sorts this out, I use RadeonPro with Dirt 2 profile / alternate frame rendering. You can put AA on to your heart's content and whatever other settings you want. The trade off is frame rates aren't ideal [read: wide fluctuation], but doable. How does renaming Witcher2.exe to Dirt3.exe do anything? I could name it Oogabooga.exe and it will still just launch the game right? Also, I have never even seen a profile for Dirt 3.

It will use the Dirt 3 profile, giving you slightly erratic and a drop in frame rates, but the lighting issues is gone. Try if for yourself if you don't believe me.

Fair enough and I'll try it out of curiosity when I get home to my computer, yet how does simply renaming a file make the executable access a different profile? Also, I haven't seen a profile released for Dirt 3, perhaps it's out there somewhere.

They mentioned single GPU users may notice a bit of a performance boost as well, but the focus is on Crossfire users. It helped my single GPU.

i guess Catalyst drivers / CAPs use file names to know which profile to apply.

There hasn't been an update on this issue for a couple of days. Kind of frustrating that xfire users have had to wait over 2 weeks now to play the game correctly.