From mboxrd@z Thu Jan 1 00:00:00 1970 From: Colin Guthrie Subject: Re: alsactl adds volume controls? Date: Thu, 30 Sep 2010 19:20:21 +0100 Message-ID: <4CA4D4E5.4080806@colin.guthr.ie> References: <4C7F6D5D.7020101@canonical.com> <4C7FB2CF.5060505@ladisch.de> <4C7FC85B.4000009@ladisch.de> <4CA46E98.10402@ladisch.de> <4CA4A844.7060403@colin.guthr.ie> <20100930164753.GB9431@sirena.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from lo.gmane.org (lo.gmane.org [80.91.229.12]) by alsa0.perex.cz (Postfix) with ESMTP id 82C1910394E for ; Thu, 30 Sep 2010 20:20:31 +0200 (CEST) Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1P1Nk5-0004eS-Mq for alsa-devel@alsa-project.org; Thu, 30 Sep 2010 20:20:29 +0200 Received: from cpc1-sgyl30-2-0-cust258.sgyl.cable.virginmedia.com ([94.173.13.3]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 30 Sep 2010 20:20:29 +0200 Received: from gmane by cpc1-sgyl30-2-0-cust258.sgyl.cable.virginmedia.com with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 30 Sep 2010 20:20:29 +0200 In-Reply-To: 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: alsa-devel@alsa-project.org Cc: Mark Brown List-Id: alsa-devel@alsa-project.org 'Twas brillig, and Takashi Iwai at 30/09/10 19:09 did gyre and gimble: > At Thu, 30 Sep 2010 17:47:53 +0100, > Mark Brown wrote: >> >> On Thu, Sep 30, 2010 at 04:09:56PM +0100, Colin Guthrie wrote: >> >>> *shouldn't* use them, but at present it does and they *are* active and >>> used, so it's not an issue for me), the problem is rather one of setting >>> Master (not PCM) to 0% aka -46.5dB causes some kind of auto-mute that >>> cuts off all sound. It shouldn't do that. I've not muted it. I've set it >> >> Is this perhaps just an error in the TLV information - should it be >> flagging that the minimim gain is mute but isn't? > > There is no clear (or consistent) definition in HD-audio codec, I guess. > Some chips do mute at 0 and some not. The capability bit shows only > whether it can mute or not -- not about whether it mutes at zero. Is there some way I can force this metadata into the driver of files for my h/w in such a way that PA will pick up on it and thus work correctly? Col -- Colin Guthrie gmane(at)colin.guthr.ie http://colin.guthr.ie/ Day Job: Tribalogic Limited [http://www.tribalogic.net/] Open Source: Mageia Contributor [http://www.mageia.org/] PulseAudio Hacker [http://www.pulseaudio.org/] Trac Hacker [http://trac.edgewall.org/]