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Bug#822839: linux-image-4.5.0-1-amd64: Suspend to RAM keeps CPU running



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On Thu, 2016-04-28 at 10:46 +0200, Ph. Marek wrote:
> Package: src:linux
> Version: 4.5.1-1
> Severity: normal
> 
> With 4.4.0-1-amd64, suspend to RAM works 9 times out of 10.
> (Sometimes the machine boots afresh instead of just waking up.)
> 
> With 4.5.0-1-amd64, the first (and up to now only) try looked
> normal (screen off, LED blinking), but a few minutes later I noticed
> that the backpack was getting really hot.
> Checking I found that the fan was running at maximum, because
> (I guess) the CPU was still running at top speed.
> 
> Opening the laptop didn't wake it up, neither did pressing the
> power key; I had to remove the battery to turn it off and let
> it cool down.
[...]

Please follow
<https://www.kernel.org/doc/Documentation/power/basic-pm-debugging.txt>
to work out which stage of the suspend/resume process is broken.

Ben.

-- 
Ben Hutchings
All extremists should be taken out and shot.

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