I think this bug is assigned to the wrong package. It is very likely a kernel problem. On my hardware, the kernel actually detects the lock. I posted extracts from the syslog file recovered after a hard reset in the following two posts to another thread on the same problem: <a href="https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1154006/comments/42";>1154006#42</a> and <a href="https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1154006/comments/46";>1154006#46</a>. The lines to look for are
Apr 10 18:58:51 ceylon kernel: [ 2412.456005] ioatdma 0000:00:08.0: reset Apr 10 18:58:52 ceylon kernel: [ 2412.603756] BUG: soft lockup - CPU#3 stuck for 22s! [svn:5127] in #42 and Apr 14 13:16:12 ceylon kernel: [18557.572005] ioatdma 0000:00:08.0: reset Apr 14 13:16:12 ceylon kernel: [18557.772001] INFO: rcu_sched detected stall on CPU 1 (t=15000 jiffies) Apr 14 13:16:12 ceylon kernel: [18557.772002] sending NMI to all CPUs: in #46. I just went back to 10.04, the instability of 12.04 is just ridiculous. I hope that a kernel developer is following this discussion and might find a hint in the syslog extracts I posted under the other number. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/993187 Title: ubuntu 12.04 completely freezes frequently. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/993187/+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
