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

Takashi Iwai tiwai at suse.de
Fri Aug 19 09:45:20 CEST 2011

At Mon, 15 Aug 2011 16:04:46 -0500,
Pierre-Louis Bossart wrote:
> > 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...

Indeed, there are only few apps that use the pause operation, so it
won't a big win in comparison to the added code complexity.



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