I suggest testing out the latest natty -proposed kernel, it contains commit 9ee653dce0efc6bad29f0d68b4ac74dbed093131
commit 9ee653dce0efc6bad29f0d68b4ac74dbed093131 Author: Tero Kristo <[email protected]> Date: Thu Feb 24 17:19:23 2011 +0200 cpuidle: menu: fixed wrapping timers at 4.294 seconds BugLink: http://bugs.launchpad.net/bugs/774947 Cpuidle menu governor is using u32 as a temporary datatype for storing nanosecond values which wrap around at 4.294 seconds. This causes errors in predicted sleep times resulting in higher than should be C state selection and increased power consumption. This also breaks cpuidle state residency statistics. cc: [email protected] # .32.x through .39.x Signed-off-by: Tero Kristo <[email protected]> Signed-off-by: Len Brown <[email protected]> (cherry picked from commit 7467571f4480b273007517b26297c07154c73924) Acked-by: Stefan Bader <[email protected]> Signed-off-by: Tim Gardner <[email protected]> This should fix a bug with incorrect C state selection which lead to increased power consumption. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/760131 Title: Power consumption raised significantly in natty To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-release-notes/+bug/760131/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
