Looks like this was actually a mesa bug, fixed in the 7.7 version we have in lucid. Thanks, closing bug.
** Package changed: xserver-xorg-video-ati (Ubuntu) => mesa (Ubuntu) ** Changed in: mesa (Ubuntu) Status: New => Fix Released -- radeon_lock.c:65: radeonGetLock: „drawable != ((void *)0)” Assertion https://bugs.launchpad.net/bugs/487204 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