linux-kernel - Re: 2.6.29 regression: left audio channel broken after resume from suspend with Intel HDA

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Message-ID: <20090421183936.GA21935@dose.home.local>
Date:	Tue, 21 Apr 2009 20:39:36 +0200
From:	Tino Keitel <tino.keitel@...ei.de>
To:	Takashi Iwai <tiwai@...e.de>
Cc:	linux-kernel@...r.kernel.org, alsa-devel@...a-project.org
Subject: Re: 2.6.29 regression: left audio channel broken after resume from
	suspend with Intel HDA

On Tue, Apr 21, 2009 at 09:39:13 +0200, Takashi Iwai wrote:
> At Tue, 21 Apr 2009 09:32:19 +0200,
> Tino Keitel wrote:
> > 
> > On Tue, Apr 21, 2009 at 07:24:40 +0200, Takashi Iwai wrote:
> > > The commit is fcad94a4c71c36a05f4d5c6dcb174534b4e0b136:
> > >     ALSA: hda - Fix the cmd cache keys for amp verbs
> > 
> > Thanks for the reply. However, the patch doesn't work. I just got
> > distorted sound again.
> 
> Then please run alsa-info.sh (with --no-upload option) before and
> after suspend, and attach the generated files.  Also, check the latest
> Linus tree whether the problem still appears.

My first impression with suspend seems to be wrong. It also sometimes
happens just after a while, event without suspend.

Attached are 2 alsa-info.sh outputs. One was taken after I noticed the
distorted sound, one after I reloaded snd-hda-intel to fix the
distortion. The mixer seems to be quite different after module reload.

Regards,
Tino

View attachment "alsa-left-channel-distorted.txt" of type "text/plain" (16981 bytes)

View attachment "alsa-left-channel-ok.txt" of type "text/plain" (17035 bytes)