From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takashi Iwai Subject: Re: Alsa Issue - Sound playback starts on left speaker only Date: Wed, 25 Jun 2008 12:23:19 +0200 Message-ID: References: <6AA7F928714999469B70E7707C87F82C531570@TW-EVS02.corelcorp.corel.ics> <4860AF67.7060507@cox.net> <6AA7F928714999469B70E7707C87F82C5315A8@TW-EVS02.corelcorp.corel.ics> Mime-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mx1.suse.de (ns1.suse.de [195.135.220.2]) by alsa0.perex.cz (Postfix) with ESMTP id 70E622432F for ; Wed, 25 Jun 2008 12:23:19 +0200 (CEST) In-Reply-To: <6AA7F928714999469B70E7707C87F82C5315A8@TW-EVS02.corelcorp.corel.ics> 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: Ashwin.Chandra@corel.com Cc: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org At Wed, 25 Jun 2008 01:52:16 +0800, wrote: > > I have an Intel ALC861VD. Other players (mplayer, smplayer, aplay) don't > seem to exhibit this problem. Is there any workaround I can do in my > application so that upon first time sound playback, I can get it to play > on both channels? Check /proc/asound/card0/pcm0p/sub0/* files and compare between working and non-working states. I guess the working case uses OSS emulation or 16bit format. If so, try to add the following to ~/.asoundrc: defaults.pcm.dmix.format S16_LE Takashi > > -----Original Message----- > From: stan [mailto:ghjeold_i_mwee@cox.net] > Sent: Tuesday, June 24, 2008 1:25 AM > To: Ashwin Chandra > Cc: alsa-devel@alsa-project.org > Subject: Re: [alsa-devel] Alsa Issue - Sound playback starts on left > speaker only > > Ashwin.Chandra@corel.com wrote: > > > > > > Hello, > > > > I am having an issue with my playback application where upon playback > > start, only the left speaker is outputted. But if I mute and unmute > > (either through my application or using alsamixer), the sound playback > > resumes on both left and right speakers. This only happens on a > > particular system too (out of 5 systems). But I know it is my issue > > because mplayer or smplayer works fine. > > > > > > > > I believe I am setting the correct HW params (ie. 2 channels), etc. > > > > > > > > Any ideas? > > > > > > > > Thanks! > > > > > The ICE1724 driver has exactly this behavior. It is a known bug and has > > been there for years. > You don't say what chip is having the problem, but I would guess that > this is it. Most people > just program a script to adjust the volume at startup to cure it. > _______________________________________________ > Alsa-devel mailing list > Alsa-devel@alsa-project.org > http://mailman.alsa-project.org/mailman/listinfo/alsa-devel >