I suggest testing out the latest natty -proposed kernel, it contains
commit 9ee653dce0efc6bad29f0d68b4ac74dbed093131
commit 9ee653dce0efc6bad29f0d68b4ac74dbed093131
Author: Tero Kristo <tero.kri...@nokia.com>
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: sta...@kernel.org # .32.x through .39.x
Signed-off-by: Tero Kristo <tero.kri...@nokia.com>
Signed-off-by: Len Brown <len.br...@intel.com>
(cherry picked from commit 7467571f4480b273007517b26297c07154c73924)
Acked-by: Stefan Bader <stefan.ba...@canonical.com>
Signed-off-by: Tim Gardner <tim.gard...@canonical.com>
This should fix a bug with incorrect C state selection which lead to
increased power consumption.
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https://bugs.launchpad.net/bugs/760131
Title:
Power consumption raised significantly in natty
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