From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jiri Slaby Subject: Re: mmotm 2010-08-11 - audio volume issues Date: Thu, 12 Aug 2010 23:06:22 +0200 Message-ID: <4C64624E.7040002@gmail.com> References: <201008112340.o7BNenDe021017@imap1.linux-foundation.org> <5043.1281639572@localhost> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-bw0-f51.google.com (mail-bw0-f51.google.com [209.85.214.51]) by alsa0.perex.cz (Postfix) with ESMTP id 27BAB244E4 for ; Thu, 12 Aug 2010 23:06:26 +0200 (CEST) Received: by bwz10 with SMTP id 10so441916bwz.38 for ; Thu, 12 Aug 2010 14:06:25 -0700 (PDT) In-Reply-To: <5043.1281639572@localhost> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: Valdis.Kletnieks@vt.edu Cc: Takashi Iwai , Andrew Morton , Wu Fengguang , linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org 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