linux-kernel - Re: Audio crackles with 4.1-rc1

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Message-ID: <20150519161911.GD28070@earth.li>
Date:	Tue, 19 May 2015 17:19:11 +0100
From:	Jonathan McDowell <noodles@...th.li>
To:	Takashi Iwai <tiwai@...e.de>
Cc:	alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: Re: Audio crackles with 4.1-rc1

On Tue, May 19, 2015 at 08:15:32AM +0200, Takashi Iwai wrote:
> At Sat, 2 May 2015 16:05:13 +0100,
> Jonathan McDowell wrote:
> > 
> > On Thu, Apr 30, 2015 at 07:06:31PM +0200, Takashi Iwai wrote:
> > > At Thu, 30 Apr 2015 16:01:31 +0100, Jonathan McDowell wrote:
> > > > 
> > > > On Wed, Apr 29, 2015 at 01:54:57PM +0200, Takashi Iwai wrote:
> > > > > 
> > > > > One patch you can try (with or without power_save_node
> > > > > disablement) is below, it squashes the verb sequences at (runtime)
> > > > > PM resume as we did for 4.0.  Let me know if this changes the
> > > > > behavior.
> > > > 
> > > > Patch alone has no effect. Patch with power_save_node disablement
> > > > solves the problem. Didn't try power_save_node disablement without
> > > > the patch.
> > > 
> > > Then please confirm that only power_save_node disablement suffices.
> > > This can be considered as the least change that can be put to 4.1-rc
> > > if no better fix is found.
> > 
> > Setting codec->power_save_node to 0 in patch_alc269 is sufficient; no
> > noticeable cracking occurring.
> 
> Does the patch below have any improvement?

I still get a clicking on the standby -> active transition with the
patch provided on top of 4.1-rc4.

J.

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