This problem seems to be related to unity and xorg/noveau - even with the current kernel updates the problem occurs frequently.
[ 127.276659] nouveau E[ PGRAPH][0000:01:00.0] DATA_ERROR INVALID_VALUE [ 127.276665] nouveau E[ PGRAPH][0000:01:00.0] DATA_ERROR [ 127.276669] nouveau E[ PGRAPH][0000:01:00.0] ch 3 [0x001fb24000 Xorg[1424]] subc 2 class 0x502d mthd 0x08b8 data 0x00044110 [ 500.611592] type=1400 audit(1400139860.352:75): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/cups/backend/cups-pdf" pid=5865 comm="apparmor_parser" [ 500.611600] type=1400 audit(1400139860.352:76): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=5865 comm="apparmor_parser" [ 500.612052] type=1400 audit(1400139860.352:77): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=5865 comm="apparmor_parser" [ 2638.196343] nouveau E[ PFIFO][0000:01:00.0] DMA_PUSHER - ch 3 [Xorg[1424]] get 0x002003548c put 0x00200354f4 ib_get 0x000001c5 ib_put 0x00000250 state 0x80000224 (err: INVALID_CMD) push 0x00400040 -- 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/1314405 Title: Screen freezes due to Xorg crashed SIGABRT and noveau error To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1314405/+subscriptions _______________________________________________ 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
