Comment 18 for bug 818830

Good to hear that Intel is working on this; thanks for the update. I would like to point out, however, that this power problem has two separate symptoms that add up to give the huge power loss. The first is disabling rc6 (on Sandy Bridge) in kernels 3.x. The second has to do with "sparse irq" in the 3.x kernels causing excessive processor wakeups (also on Sandy Bridge), as documented in this related/duplicate bug's description: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/834037

Should I file a new, separate bug report for the sparse irq problem? I thought the two problems might be related, but maybe not.