I've removed the plymouth tasks as this seems to have been narrowed done to a bug in grub-gfxpayload-lists.
** No longer affects: plymouth (Ubuntu) ** No longer affects: plymouth (Ubuntu Precise) ** No longer affects: plymouth (Ubuntu Quantal) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/975931 Title: purple screen freeze with AMD 6850 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-gfxpayload-lists/+bug/975931/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs