Catalyst 10.8 poor SC2 performance and crashes

I updated to 10.8 last week and got some SC2 time in over the weekend. First thing I noticed was that my performance had dropped significantly. I'm not sure if this was caused by the Catalyst quality profiles changing from 10.7 to 10.8, but I was getting ~20% lower framerates. I also got some corruption and a single non-GSOD crash that required a hard reset. I decided to roll back to 10.7a until a new version is released, and now everything is back to normal. Has anyone else had a similar experience with 10.8?

 

Running 10.8 here and no problems with starcraft 2

 

That locking up is a form of GSOD. I get that lockup on 10.7a but not 10.6 or 10.1

 

I get the lockups in every driver version. I only had mine a few days, so I took it back to best buy. I just uppacked my new one and the manufacture date looks like 05-2010, so I'm going to try this one out now and see if I still get the GSOD.

 

Most people have had success with a slight over-clock to 705/1100 using the ATI GPU clock tool. Mine has been working fine since bios 209 and 10.6 ATI with that over-clock. I've played through the entire game on normal and 1/2 way through on hard plus many hours online with my children. Never a hang, freeze or artifact.

Same with Company of Heroes which is very GPU intense. Once you get it working I'd leave it be.

Cheers,

 

I experience the lock-ups as well, and it was the worst using both versions of the beta vBIOS and Cat 10.8.

I am most stable with ziddy's vBIOS and Cat 10.7 with 705/1100 clocks, but even then the lock ups will happen every 15 minutes or so. The game freezes, the screen turns a solid color, the screen turns black, and the cursor reappears. Then the game reappears and I can continue playing. So annoying.

 

I had some problems with 10.8 as well, and I read on a website that there is a way to limit the framerate for SC2. Once I did that, it ran fine for me and no crashes so far.

Here is where you can get the info to limit the framerate: StarCraft 2 doesn't limit framerates | bit-tech.net

 

That's not the problem, with 10.7a I'm perfectly stable at stock 700/1000 and I get an average of about 55fps @1600x900 with ultra settings. When I updated to 10.8 my framerate dropped to about 40-45 fps average and I had some instability at stock speeds.

 

Did you check to see if AA was being forced in CCC? If its not then I would say go back to 10.7a if its stable.

 

It was not, and I already have. Just odd that my system tolerated reference drivers pre-10.8 and seem to hate these.

 

Oooh. I get that when I overclock to 800/1100. In every game I've played, including SC2. Sometimes it hardlocks where only a power button reboot can fix, and sometimes it returns to the game.

But drop it down to 780/790 everything's fine and dandy.

On 10.6 Cats though.

 

Like most people say it looks like all systems have problems with the current vbios. But some dont show very often or at all. Yours just happen to show up after 10.7a.

 

Weird, I reinstalled 10.8 and now it's fine. Last time I kept the HDMI driver, hydravision, and avivo and installed 10.8. This time I completely removed everything and manually installed the previously listed components. Now it works fine, no corruption, no crashes. The performance hit was caused by antialiasing being enabled in SC2, which was apparently still broken in 10.7a.