[alsa-devel] hda intel - power save - need more help
tiwai at suse.de
Mon Jun 2 12:19:43 CEST 2008
At Mon, 2 Jun 2008 15:44:08 +0530,
Harsha priya gupta wrote:
> using the hildon desktop, there is just one control exposed of volume/mute. i
> muted that and still no luck. Any other idea that that i can try?
Try standard programs in alsa-utils instead.
> On Mon, Jun 2, 2008 at 3:11 PM, Takashi Iwai <tiwai at suse.de> wrote:
> At Mon, 2 Jun 2008 15:07:49 +0530,
> Harsha priya gupta wrote:
> > I verified the value of /sys/modules/snd_hda_intel/parameters/power_save
> to be
> > 10.
> > How can i ensure that the analog switches are off? Through Kmix?
> Any sane mixer apps you like. But note that some mixer apps are buggy
> and don't show all mixer components.
> > On Mon, Jun 2, 2008 at 1:01 PM, Takashi Iwai <tiwai at suse.de> wrote:
> > At Mon, 2 Jun 2008 12:15:06 +0530,
> > Harsha priya gupta wrote:
> > >
> > > I checked on these articles on powertop...i manually set it the
> value to
> > 10
> > > for *POWER_SAVE_DEFAULT but still don't see any power saving...
> > Check whether it's really set to 10 in
> > /sys/modules/snd_hda_intel/parameters/power_save.
> > Also, the power-save is turned on only when all analog loopback
> > switches are off, e.g. Mic Playback Switch or Beep Playback Switch
> > must be off. Otherwise the analog part must be powered on.
> > Takashi
> > --
> > -Harsha
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