I also managed to fix the performance (from 600fps to 1000fps with a GM45) as well as frequent crashes (consistently with etracer for instance). This is on an intrepid amd64 system.
1. install a 2.6.28 kernel (I got the current one from jaunty).
2. from the xorg-edgers ppa, install the mesa an required packages, and xserver-xorg-video-intel 2:2.4.97.0+git20081129
3. restart X (before restarting it works, but with warning that GEM is not used, and no performance improvement)
I didn't need to compile a custom kernel or kernel modules.
I got the error with X not restarting (same as portis above) when I was using xserver-xorg-video-intel 2.5.1 from jaunty. Using the 2.4.97 version from xorg-edgers fixed that.
I also managed to fix the performance (from 600fps to 1000fps with a GM45) as well as frequent crashes (consistently with etracer for instance). This is on an intrepid amd64 system.
1. install a 2.6.28 kernel (I got the current one from jaunty). xorg-video- intel 2:2.4.97. 0+git20081129
2. from the xorg-edgers ppa, install the mesa an required packages, and xserver-
3. restart X (before restarting it works, but with warning that GEM is not used, and no performance improvement)
I didn't need to compile a custom kernel or kernel modules.
I got the error with X not restarting (same as portis above) when I was using xserver- xorg-video- intel 2.5.1 from jaunty. Using the 2.4.97 version from xorg-edgers fixed that.