Xorg hang with 100% cpu, any driver version, GTX275
Hi, when attempting to play Nexuiz 2.5.2 (or other games using the Darkplaces engine, for example Xonotic compiled from git) I regularly experience huge slowdowns (less than 1fps) or complete X hangs. Usually this happens when I try to task switch, such as by pressing alt+tab, but not always. Once X hangs, it is not possible to switch to a VT or otherwise remedy the situation except by killing Xorg over SSH.
Kernel 2.6.31, Xserver 1.7.7
GPU temp ~45C
The first bug report was run whilst the hung Xorg is still running, the second is from after it was killed.