I've tried to do X backtrace with guide from https://wiki.ubuntu.com/X/Backtracing but I'm not sure if logs from it are usefull - I thought backtrace from gdb should be bigger. I've installed "xserver-xorg-core-dbg libgl1-mesa-dri-dbg xserver-xorg-video-radeon-dbg" packages before gdb.
** Attachment added: "X backtrace with gdb first try" http://launchpadlibrarian.net/35548980/gdb-Xorg.txt -- [Karmic] Xorg eats 100% CPU in certain situations https://bugs.launchpad.net/bugs/478584 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