linux-kernel - Re: still in 3.9-rc6 - fan speed at 100% after suspend/resume regression

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Date:	Sat, 13 Apr 2013 14:07:28 -0600
From:	Jake Edge <jake@....net>
To:	Zhang Rui <rui.zhang@...el.com>
Cc:	"Rafael J.Wysocki" <rjw@...k.pl>,
	Eduardo Valentin <eduardo.valentin@...com>,
	lkml <linux-kernel@...r.kernel.org>,
	Roberto Oppedisano <roberto.oppedisano@...il.com>,
	Ville Syrjala <syrjala@....fi>,
	Salvatore Sisinni <s.sisinni@...il.com>, auxsvr@...il.com
Subject: Re: still in 3.9-rc6 - fan speed at 100% after suspend/resume
 regression

[ not sure why, but the lkml address got munged in Rui's reply ...
fixed now -- sorry for the dupe ]

On Sun, 14 Apr 2013 02:20:15 +0800 Zhang Rui wrote:

> > A brief recap: after resuming, the fan on the laptop spins up to
> > full speed and stays there. "temp6" in "acpitz-virtual-0" (as shown
> > by "sensors") is 100°C and stays there, which is presumably what is
> > making the fan stay on.
> > 
> first, this seems like the same problem reported at
> https://bugzilla.kernel.org/show_bug.cgi?id=50041
> please refer to comment #17 and #27.

Yes, it does seem like the same bug that Matthias is talking about in
those comments ...
 
> > Is more information needed?
> > 
> please attach the acpidump output of your laptop.

I have the dump, do you want it on the old closed bug or shall I wait
until Matthias opens a new one?

> can you please test thermal -thermal branch at
> git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux.git

I just tried it, no difference in behavior (fan on full, temp6 ==
100°C) ...

I took all the defaults when I did a 'make oldconfig', some of which
looked thermal-related ... was I supposed to set them differently?

thanks,

jake

-- 
Jake Edge - LWN - jake@....net - http://lwn.net
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