I can reproduce it too with attaching external power. So setting power management to performance in battery mode fixes it for me. Moreover the kernel freezes I had seem to be gone since getting rid of closed source drivers (Broadcom and ATI Radeon)
-- Frequent ATA errors and disk corruption https://bugs.launchpad.net/bugs/539467 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
