Running Xorg with r300 DRI on a ThinkPad with ATI Mobility Radeon X300, I get system lockups when running certain 3D applications, such as tuxsaver and google-earth. This applies to all recent Xorg+Mesa+DRM versions, including current git. The lockups seem to happen when the mouse moves. Adding Option "Silkenmouse" "false" to the x.org Device section eliminates the hangs with tuxsaver, and reduces their frequency with google-earth. Xorg.conf attached.
Created attachment 10637 [details] xorg.conf resulting in lockup
I saw this as well back in March. Disabling SilkenMouse got it working for me consistently, so I've just left it disabled. I had the bug tracked down to the merge of the vbo-0.2 branch. You can read my posts to the dri-devel mailing list here: http://marc.info/?l=dri-devel&m=117322250405189&w=3 I did not, at the time, try to track down the bug any further since I had a fix for it and just didn't have much free time. It'd be interesting to see if you can test the mesa tree right before the merge with vbo-0.2 and right after the merge to see if you get the same results I did.
Mass version move, cvs -> git
Can you try newer versions of libdrm, mesa and kernel radeon drm module?
Closing due to lack of user feedback.
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