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

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Date:	Fri, 8 Dec 2006 13:53:46 -0500
From:	"Ian E. Morgan" <penguin.wrangler@...il.com>
To:	LKML <linux-kernel@...r.kernel.org>, perex@...e.cz,
	alsa-devel@...a-project.org, emu10k1-devel@...ts.sourceforge.net
Subject: Loud POP from sound system during module init w/ 2.6.19

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.

I have removed any fiddling of mixer settings during module
load/unload; same results.

I have complied the kernel both with and without
CONFIG_SND_AC97_POWER_SAVE; same results.

The workstation uses snd_emu10k1, the notebook snd_intel8x0, so it's
affecting more than a single driver.

Anybody else seeing this behaviour and know how to stop it?

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