Battery life decreased after upgrade to 11.04

Posted by bruno077 on Ask Ubuntu See other posts from Ask Ubuntu or by bruno077
Published on 2011-04-29T18:07:40Z Indexed on 2011/06/27 8:30 UTC
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Filed under:

11.04

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power-management

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battery

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thinkpad

After upgrading from Ubuntu 10.10, my battery life has decreased dramatically.

There was a bug in Ubuntu 10.10 where the Load Balancing Tick and Kworker would interrupt and wake-up the cpu too much, and this wasn't normal. I applied a gnome-power-manager fix back then, following this question, which leads to this bug report, and battery life increased to 3.5 hours.

I'm getting around two hours of battery-life in Natty, and calling Intel's powertop reveals that this bug is back. Is there a fix for Natty yet?

I have a Core 2 Duo ULV, Thinkpad Edge 13

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