Bizarrely, this problem has now gone away for me. I've kept an eye on powertop for the 2 days since it went and not once have I seen it heading over 1000 wakeups per second unless I am doing something intensive. There must have been an update that fixed it, but who knows what given the huge number of daily updates at this point in the cycle.
My only concern now is that this: 52.6% (116.4) <kernel IPI> : Rescheduling interrupts seems to be causing most of the wakeups now. This did not happen on Gutsy. For example, I am now around 200-250 wakeups per second on a quiesced machine, whereas on Gutsy it was around 100. This equates to a good watt of power. -- Powertop reports huge number of wakeups and drains battery https://bugs.launchpad.net/bugs/145377 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