On Thu, Jan 20, 2011 at 10:39 AM, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote: > Ok, so I have a new issue that I'm currently bisecting but that people > may be able to figure out even befor emy bisect finishes. > > On my slow Atom netbook (that I'm planning on using as my traveling > companion for LCA), suspend-to-RAM takes a long time with current git. > It's quite noticeable - it used to be pretty much instant, now it > takes three seconds. And it's all i915 graphics (although I haven't > bisected it down fully, I've bisected it down to the drm merge). > > In the good case (like plain 2.6.37), a suspend event will look > something like this:... > PM: suspend of devices complete after 147.646 msecs > but the i915 driver at some point made it take 3s: > PM: suspend of devices complete after 3059.656 msecs > which is definitely long enough to be worth fixing. > > Maybe the person responsible will go "oh, that's obviously due to > xyz", and just fix it. But I'll continue to bisect in case nobody > steps up to admit to wasting time.. Rafael send out two patches earlier. Could be related. I was facing issue during resume. Attached are the two patches. You'll need to apply both. Len has suggested before to try to booting with "acpi_sleep=nonvs" which works as well for my case. Thanks, Jeff
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patch-resume1
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