X backtrace after sysrq+k by following https://wiki.ubuntu.com/X/Backtracing
** Attachment added: "gdb-Xorg_after_SAK.txt" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/711908/+attachment/1851909/+files/gdb-Xorg_after_SAK.txt -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-nouveau in ubuntu. https://bugs.launchpad.net/bugs/711908 Title: [natty] frequent nouveau freeze on GT218 [NVS 3100M] (rev a2) _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp