Can you ssh in to the machine from another system when this happens? If so, can you check if the 2.6.38-11 kernel that is in natty-proposed fixes this problem? There was a fix for for these symptoms in that kernel that was also included in 3.0-rc4, but if you can't ssh into the machine then it is a different bug. I do believe it should be fixed in 2.6.38-11 though going from these logs and lack of an actual GPU hang.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/792849 Title: Lenovo ThinkPad T420 random hardlocks with Sandy Bridge graphics To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/792849/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
