I have the same problem in lucid with the game sauerbraten on a RV530. The patches mentioned by Pauli are included in 2.6.34-rc1.
** Bug watch added: freedesktop.org Bugzilla #23993 https://bugs.freedesktop.org/show_bug.cgi?id=23993 ** Also affects: xserver-xorg-driver-ati via https://bugs.freedesktop.org/show_bug.cgi?id=23993 Importance: Unknown Status: Unknown ** Summary changed: - [RV280 Radeon 9200 SE] OpenGL Fullscreen hangs/crashes Xorg. + [Radeon kernel module] drmRadeonCmdBuffer: -12. Kernel failed to parse or rejected command stream ** Tags added: lucid -- [Radeon kernel module] drmRadeonCmdBuffer: -12. Kernel failed to parse or rejected command stream https://bugs.launchpad.net/bugs/533784 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs