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From: Jiri Slaby <jirislaby@gmail.com>
To: Valdis.Kletnieks@vt.edu
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Takashi Iwai <tiwai@suse.de>,
	Wu Fengguang <fengguang.wu@intel.com>,
	linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org
Subject: Re: mmotm 2010-08-11 - audio volume issues
Date: Thu, 12 Aug 2010 23:06:22 +0200	[thread overview]
Message-ID: <4C64624E.7040002@gmail.com> (raw)
In-Reply-To: <5043.1281639572@localhost>

On 08/12/2010 08:59 PM, Valdis.Kletnieks@vt.edu wrote:
> On Wed, 11 Aug 2010 16:10:49 PDT, akpm@linux-foundation.org said:
>> The mm-of-the-moment snapshot 2010-08-11-16-10 has been uploaded to
>>
>>    http://userweb.kernel.org/~akpm/mmotm/
> 
> Something appears to be borked in the ALSA arena.  There's no actual volume coming
> out of the system, and 'alsamixer' is insisting that the volume slider only goes from 0
> to 10% or so, no further.  However, experimentation shows that the volume slider
> in 'xine' *does* affect the 'Amp-Out vals' lines, and alsamixer has *no* effect on
> what 'Amp-Out vals' lists.
> 
> A diff of alsa-info.sh for the two kernels shows them being identical, so I'm only
> attaching one copy.
> 
> It may be the weekend before I find time to do a bisection of this.

Didn't you (like some other people) get into the state where pulseaudio
doesn't work? It chooses as an output a dummy driver automatically, then
you can change volume, play sound, but actually it all goes to /dev/null.

It took me a while before I figured out that it's a "dummy" driver I
have in pulseaudio.

regards,
-- 
js

WARNING: multiple messages have this Message-ID (diff)
From: Jiri Slaby <jirislaby@gmail.com>
To: Valdis.Kletnieks@vt.edu
Cc: Takashi Iwai <tiwai@suse.de>,
	Andrew Morton <akpm@linux-foundation.org>,
	Wu Fengguang <fengguang.wu@intel.com>,
	linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org
Subject: Re: mmotm 2010-08-11 - audio volume issues
Date: Thu, 12 Aug 2010 23:06:22 +0200	[thread overview]
Message-ID: <4C64624E.7040002@gmail.com> (raw)
In-Reply-To: <5043.1281639572@localhost>

On 08/12/2010 08:59 PM, Valdis.Kletnieks@vt.edu wrote:
> On Wed, 11 Aug 2010 16:10:49 PDT, akpm@linux-foundation.org said:
>> The mm-of-the-moment snapshot 2010-08-11-16-10 has been uploaded to
>>
>>    http://userweb.kernel.org/~akpm/mmotm/
> 
> Something appears to be borked in the ALSA arena.  There's no actual volume coming
> out of the system, and 'alsamixer' is insisting that the volume slider only goes from 0
> to 10% or so, no further.  However, experimentation shows that the volume slider
> in 'xine' *does* affect the 'Amp-Out vals' lines, and alsamixer has *no* effect on
> what 'Amp-Out vals' lists.
> 
> A diff of alsa-info.sh for the two kernels shows them being identical, so I'm only
> attaching one copy.
> 
> It may be the weekend before I find time to do a bisection of this.

Didn't you (like some other people) get into the state where pulseaudio
doesn't work? It chooses as an output a dummy driver automatically, then
you can change volume, play sound, but actually it all goes to /dev/null.

It took me a while before I figured out that it's a "dummy" driver I
have in pulseaudio.

regards,
-- 
js

  parent reply	other threads:[~2010-08-12 21:06 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-08-11 23:10 mmotm 2010-08-11-16-10 uploaded akpm
2010-08-12 16:18 ` mmotm 2010-08-11 - RCU whinge during very early boot Valdis.Kletnieks
2010-08-16 17:23   ` Paul E. McKenney
2010-10-05 10:05   ` Zdenek Kabelac
2010-10-06 23:04     ` Paul E. McKenney
2010-10-06 23:18       ` Ben Greear
2010-10-18 12:26       ` Zdenek Kabelac
2010-11-07 18:46         ` Paul E. McKenney
2010-08-12 16:36 ` [PATCH] mmc: fix for CONFIG_PM disabled Randy Dunlap
2010-08-18  9:10   ` Uwe Kleine-König
2010-08-12 16:37 ` mmotm 2010-08-11 - lockdep whinges at e1000e driver ifconfig up Valdis.Kletnieks
2010-08-12 18:59 ` mmotm 2010-08-11 - audio volume issues Valdis.Kletnieks
2010-08-12 18:59   ` Valdis.Kletnieks
2010-08-12 19:37   ` Takashi Iwai
2010-08-12 21:06   ` Jiri Slaby [this message]
2010-08-12 21:06     ` Jiri Slaby
2010-08-12 21:11     ` Takashi Iwai
2010-08-12 21:11       ` Takashi Iwai
2010-08-13  2:13       ` Valdis.Kletnieks
2010-08-13  2:13         ` Valdis.Kletnieks

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