linux-kernel - Re: 2.6.38.4 broke my audio

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Message-ID: <s5hbozlv65o.wl%tiwai@suse.de>
Date:	Mon, 02 May 2011 10:49:23 +0200
From:	Takashi Iwai <tiwai@...e.de>
To:	Emmanuel Benisty <benisty.e@...il.com>
Cc:	Andrew Clayton <andrew@...ital-domain.net>,
	Greg KH <gregkh@...e.de>, alsa-devel@...a-project.org,
	linux-kernel@...r.kernel.org, stable@...nel.org
Subject: Re: 2.6.38.4 broke my audio

At Sun, 1 May 2011 18:19:16 +0700,
Emmanuel Benisty wrote:
> 
> On Fri, Apr 29, 2011 at 4:13 PM, Takashi Iwai <tiwai@...e.de> wrote:
> > At Fri, 29 Apr 2011 09:25:08 +0100,
> > Andrew Clayton wrote:
> >>
> >> On Thu, 28 Apr 2011 08:16:17 +0200, Takashi Iwai wrote:
> >>
> >> > OK, but now the patch assumes that it's a mutable output, so the
> >> > auto-mute shall happen.
> >> >
> >> > Actually other OSes seem to mute the line-out as well, so we may
> >> > follow the standard scenario.
> >>
> >> OK, so I guess the bit in the distribution that saves and restores
> >> mixer settings at shutdown/startup needs updating to take this new
> >> mixer into account? as the speaker mixer is always muted at startup
> >> now.
> >
> > Right, it's the user-space stuff.  The recent alsactl should do it
> > right (adjust to the certain level for new control elements), I
> > thought.
> >
> > Anyway, I'm inclined to revert the change once after figuring out
> > what caused the issue on Emmanuel's machine.
> 
> Hi Takashi,
> 
> Sorry for the few days of silence. Attached is the output from your
> latest patch with the debug patch.
> 
> Just one more thing (in case it may help), the output is not really
> muted, there are some very short sounds/plops randomly appearing
> between periods of silence when playing a file.

Hrm, the alsa-info output still shows the unexpected pin-cfg setup.
But, this is a slightly different topic from the other mixer issues,
so let's keep tracking this in another thread.

Meanwhile, I reverted the affecting commit now and merged to sound git
tree.  It'll be included in the next pull request for 2.6.39-rc.


thanks,

Takashi
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