[alsa-devel] hda-intel and runtime power-management

Pierre-Louis Bossart pierre-louis.bossart at linux.intel.com
Mon Aug 15 23:04:46 CEST 2011

> Another approach would be to set the stream to mute when paused and let
> the codec do the amp power check which will power it down if needed.
> What do you think?

PulseAudio and other equivalent layers don't pause the output. They close
the ALSA sink after a timeout and reopen it when the sink/Hal state change.
You may want to avoid working your tail off with a seemingly smart way of
using the paused state, if in the end it's not that useful...
My 2 cents,

More information about the Alsa-devel mailing list