From: Takashi Iwai <tiwai@suse.de>
To: "Ian E. Morgan" <penguin.wrangler@gmail.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
perex@suse.cz, alsa-devel@alsa-project.org,
emu10k1-devel@lists.sourceforge.net
Subject: Re: [Alsa-devel] Loud POP from sound system during module init w/ 2.6.19
Date: Tue, 19 Dec 2006 11:06:33 +0100 [thread overview]
Message-ID: <s5h7iwofbdi.wl%tiwai@suse.de> (raw)
In-Reply-To: <2a6e8c0d0612081053v4fa0f2b0uea82fac75976b767@mail.gmail.com>
At Fri, 8 Dec 2006 13:53:46 -0500,
Ian E. Morgan wrote:
>
> 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?
Hm, interesting. I thought this should be avoided by disabling
CONFIG_SND_AC97_POWER_SAVE Kconfig.
Do you get the noise at unloading or at loading time?
If it's at unloading time, it's likely in some part of
snd_ac97_powerdown(), handling of AC97_POWERDOWN bits, I guess.
Takashi
prev parent reply other threads:[~2006-12-19 10:06 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-08 18:53 Ian E. Morgan
2006-12-09 9:22 ` Jan Engelhardt
2006-12-09 13:17 ` Ian E. Morgan
2006-12-09 14:11 ` Jan Engelhardt
2006-12-19 10:06 ` Takashi Iwai [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=s5h7iwofbdi.wl%tiwai@suse.de \
--to=tiwai@suse.de \
--cc=alsa-devel@alsa-project.org \
--cc=emu10k1-devel@lists.sourceforge.net \
--cc=linux-kernel@vger.kernel.org \
--cc=penguin.wrangler@gmail.com \
--cc=perex@suse.cz \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®