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

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Date:	Sat, 2 May 2015 16:05:13 +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 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.

J.

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