[alsa-devel] hda intel - power save - need more help

[Takashi Iwai]

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.


Takashi

> 
> 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.
> 
>     Takashi
>    
>     >
>     > 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
>     >
>     >
> 
> --
> -Harsha
> 
>