Quoting Harald Milz:
Hi,
after having reinstalled my VDR with OpenSUSE 10.1 a couple of weeks ago (after which VDR was working happily for some time) some very strange things happened. At first, after a reboot, sound was gone, without any change in the configuration, only after rebooting. My setup is still as described in http://www.vdr-wiki.de/wiki/index.php/Softdevice-plugin#Matrox_G550_mit_DVI-... (in German, though). In particular, softdevice is invoked as
softdevice -ao alsa:pcm=plug:spdif#ac3=plug:spdif# -vo dfb:
No sound from VDR. Video was displayed fine. I could play testsounds with aplay just fine.
To get the mixer unmuted and or let softdevice use mixer for volume control you'll have to add "mixer:" to your audio parameter.
http://www.vdr-portal.de/board/thread.php?postid=619500#post619500
Stefan Lucke