Comment 35 for bug 356381

I have the same problem on my HP laptop with Intel Mobile 4 Integrated Graphics Controller [8086:2a42] (rev 07). Tested in current Jaunty and Karmic Alpha 1.

One observation that may be related: the performance problems with the Intel drivers that have been reported elsewhere seem to affect me only when I'm running a kernel with the 64G option and PAE enabled. The "/proc/mtrr fix" (see Bug #314928) helps a lot. When I am running a generic kernel, I don't have any serious performance problems and no need to change /proc/mtrr.