I think this problem is caused by dual graphics configuration – most likely of different types. I reported the bug for a A6-3650 in combination with an Nvidia FX6200 The same issue was present on my system up to kernel 3.5.0-17 when it disappeared and now reappeared with 3.5.0-27.46. Also I noticed that with kernel 3.5.0-27.47 issue occurs every second boot.
Hope this helps someone to fix this bug once and forever -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1158562 Title: system will not start after updating to kernel 3.5.0-27 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-lts-quantal/+bug/1158562/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs