Apport suggested reporting this bug right after I had to hard reset from a full system freeze. The screen turned into text mode and showed the log I'm attaching which I guess was the last thing logged at that time. The keyboard lights were neither flashing nor responding.
** Attachment added: "Part of kern.log" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/762423/+attachment/2045161/+files/kernel.log -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-ati in Ubuntu. https://bugs.launchpad.net/bugs/762423 Title: WARNING: at /build/buildd/linux-2.6.38/drivers/gpu/drm/radeon/radeon_fence.c:248 radeon_fence_wait+0x36f/0x3e0 [radeon]() _______________________________________________ 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