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Date:   Fri, 31 Aug 2018 21:16:11 +0200
From:   Peter Zijlstra <>
To:     Numan Demirdöğen <>
        "Rafael J. Wysocki" <>
Subject: Re: PROBLEM: Keyboard not responding after resuming from

On Fri, Aug 31, 2018 at 09:53:11PM +0300, Numan Demirdöğen wrote:
> If I put laptop to suspend or hibernate by closing lid, power
> manager or any other method and then I resume/wake up laptop, keyboard
> is not responding. My laptop is a Sony Vaio VPCEH2F1E. 
> Steps to produce bug:
> 1. Boot
> 2. Put laptop to sleep
> 3. Resume
> What I expect to happen: Keyboard responds to key press.
> What happens: Keyboard does not respond but mouse and trackball are
> working.
> git bisect point 9d659ae14b545c4296e812c70493bfdc999b5c1c as the first
> bad commit.
> Bad commit link:

That doesn't make any kind of sense... if that commit had trouble (oddly
there is one another report fingering this) all the mutex locking should
be busted (and there is a _lot_ of that in the kernel).

I really wouldn't know where to begin debugging this. Suspend/resume
isn't really something I know much of, all I can say it that it works on
my laptop.

Rafael, any idea where to start looking for this?

>  Link to actual bug report:

No, _this_ is the actual report, that is a random website you put stuff

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