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)
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)