Tanu Kaskinen wrote: : Could it be that the soundcard (hw:0) is divided to two : subdevices (probably hw:0,0 and hw:0,1)? I have tried to use "hw:0,0" or "hw:0,1" as a module-alsa-sink argument, but it does not work: W: alsa-util.c: Unable to attach to mixer hw:0,0: No such file or directory W: alsa-util.c: Unable to attach to mixer hw:0,1: No such file or directory : Pulseaudio defaults : to hw:0,0, so if do you say device=hw:0, does the : module-alsa-sink succeed to open all four channels? No. Even with the following line as the only module-alsa-sink command it complains that the device does not support 4 channels: load-module module-alsa-sink device=hw:0 channels=4 : Or maybe : you are able to load two module-alsa-sinks, giving one of : them device=hw:0,0 and the other device=hw:0,1? Unfortunately no, see above. : What does "cat /proc/asound/pcm" say? $ cat /proc/asound/pcm 00-01: VIA 8237 : VIA 8237 : playback 1 : capture 1 00-00: VIA 8237 : VIA 8237 : playback 4 : capture 1 -Yenya -- | Jan "Yenya" Kasprzak <kas at {fi.muni.cz - work | yenya.net - private}> | | GPG: ID 1024/D3498839 Fingerprint 0D99A7FB206605D7 8B35FCDE05B18A5E | | http://www.fi.muni.cz/~kas/ Journal: http://www.fi.muni.cz/~kas/blog/ | ** Those who fail to understand communication protocols, ** ** are doomed to repeat them over port 80. -- from /. **