Hi Takashi, Some more findings: mplayer run in alsa native mode doesn't have the issue. A dump of /proc/asound/.../sub0/* is identical in both my player and mplayer-alsa mode, yet mine still suffers from left speaker issue. Is there something I am not setting properly? -----Original Message----- From: Takashi Iwai [mailto:tiwai@xxxxxxx] Sent: Wednesday, June 25, 2008 3:23 AM To: Ashwin Chandra Cc: alsa-devel@xxxxxxxxxxxxxxxx Subject: Re: Alsa Issue - Sound playback starts on left speaker only At Wed, 25 Jun 2008 01:52:16 +0800, <Ashwin.Chandra@xxxxxxxxx> 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@xxxxxxx] > Sent: Tuesday, June 24, 2008 1:25 AM > To: Ashwin Chandra > Cc: alsa-devel@xxxxxxxxxxxxxxxx > Subject: Re: Alsa Issue - Sound playback starts on left > speaker only > > Ashwin.Chandra@xxxxxxxxx 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@xxxxxxxxxxxxxxxx > http://mailman.alsa-project.org/mailman/listinfo/alsa-devel > _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
