https://bugs.freedesktop.org/show_bug.cgi?id=30385
--- Comment #6 from Tomasz Czapiewski xeros@irc.pl 2010-09-27 05:31:32 PDT --- (In reply to comment #5)
The Nexuiz issue looks like bug 28341, but that was in r300c and fixed a while ago... I wonder if somehow you might be using libGL.so.1 / r300_dri.so binaries different from the ones you think, or if they might be built incorrectly.
I'm not sure how the drivers and mesa were built (it's ppa:xorg-edgers/radeon: https://edge.launchpad.net/~xorg-edgers/+archive/radeon for Ubuntu 10.04, but I used it on Kubuntu 10.10 and both mesa and dri have been upgraded) and I'm almost sure I'm using r300g, not r300c (glxinfo output: "OpenGL renderer string: Gallium 0.4 on RV350"). I haven't seen the picture of the problem in bug 28341, but I don't have "*ERROR* Invalid command stream !" error or any other related errors in dmesg.