linux-kernel - Re: Loud POP from sound system during module init w/ 2.6.19

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Message-ID: <2a6e8c0d0612090517j5afe2161p591203c70ddfc890@mail.gmail.com>
Date:	Sat, 9 Dec 2006 08:17:46 -0500
From:	"Ian E. Morgan" <penguin.wrangler@...il.com>
To:	"Jan Engelhardt" <jengelh@...ux01.gwdg.de>
Cc:	LKML <linux-kernel@...r.kernel.org>, perex@...e.cz,
	alsa-devel@...a-project.org
Subject: Re: Loud POP from sound system during module init w/ 2.6.19

Previous kernel was 2.6.18.3, which did not exhibit the problem. I was
aware of udev setting the mixer at module load time, but I disabled
that and the problem still exists.

-- 
Ian E. Morgan
penguin.wrangler@...il.com

On 09/12/06, Jan Engelhardt <jengelh@...ux01.gwdg.de> wrote:
>
> On Dec 8 2006 13:53, Ian E. Morgan wrote:
> >Subject: Loud POP from sound system during module init w/ 2.6.19
>
> What kernel did you have before?
>
> What you see is the same I am experiencing on every boot - when the sound
> module is loaded, udev loads the previous volume settings. The volume settings
> are normal for me, but I guess the instant jump from 0-70% (for Master) and
> 0-61% (for PCM) is not taken too heartly by the soundcard.
>
> > Since upgrading to 2.6.19, two of my boxes (one workstation, one
> > notebook) started making a very loud (and scary) POP from the sound
> > system when the alsa modules are loaded. Unloading and reloading the
> > modules will generate another pop.
> >
> > Anybody else seeing this behaviour and know how to stop it?
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