I experienced this issue today. I'm running an Nvidia GPU and the stock Nouveau drivers with the following kernel:
3.0.0-13-generic #22-Ubuntu SMP Wed Nov 2 13:27:26 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/865838 Title: Nouveau oops: unable to handle kernel NULL pointer dereference at (null) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/865838/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs