kkd.log is showing that there is internal problem in mesa dri driver that it emits more data to command stream that it should. Then kernel is rejecting the command stream which causes X to crash. There is some bug in mesa radeon driver.
I thunk that crash won't happen if you disable kwin composite. If that guess is right you could try to find which kwin feature is causing the problem by disabling them one by one. If you have same problem still with 2.6.33 kernel and mesa 7.8 I think this bug report should be moved to https://bugs.freedesktop.org (mesa and Drivers/r128). In fdo bug tracker you could get some devs with old enough hw to check. After bug report you could join irc channel #rad...@freenode and chat with Airlied if he would need more info to reproduce the problem. -- drag and drop action causes immediate logoff https://bugs.launchpad.net/bugs/531525 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
