Anthony Baldwin wrote: > This is the third time within the space of only two weeks, where one day > I'm happily listening to music on my machine one day. then I wake up the > next and there's no sound! > Neither pavucontrol or alsamixer show anything muted. > Last it seems a reboot (after successfully trying and succeeding to > listen with a livecd system) resolved the issue. > I can't help but think some module is being shut off overnight, but > comes back on at boot. Any ideas?
yes it could be - some recent audio chips support power save - it could be that if not used for some time it goes into power save and does not wake up again. I think this is configurable in the bios, or per driver option(s). Check the manual for your chip and driver ex: Documentation/sound/alsa/powersave.txt regards
