Comment 78 for bug 524281

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Richard Kleeman (kleeman) wrote :

Some further searching turned up this relevant thread on the kernel mailing list:

http://www.listware.net/201007/linux-kernel/16253-high-power-consumption-in-recent-kernels.html

A patch is tested there which resulted in a very big reduction in wakeups and power consumption. There is a lot of technical discussion in that thread which I did not understand but seems important. Comments by a Ubuntu kernel expert would be very welcome.....