[pulseaudio-discuss] automatic profile switch

Przemys?aw Rudy prudy1 at o2.pl
Mon Oct 5 23:49:23 PDT 2009

Lennart Poettering wrote:
> On Sun, 04.10.09 01:30, Przemek Rudy (prudy1 at o2.pl) wrote:
>> Hi,
>> It is possible to select manually between "Output Analog Stereo" and
>> "Output Digital Stereo (IEC958)". Before moving to pulse audio (using
>> pure alsa only system) the sound was automatically redirected to the
>> right output, i.e.:
>> - to the laptop front speakers when optical mini-jack was unplugged
>> - to the optical line when it was inserted
>> Is there any way to switch the used configuration profile automatically
>> when the optical plug is inserted/removed?
> Yes, jack sensing support in PA is planned. Unfortunately support for
> jack sensing in the drivers is still lacking. Some drivers do support
> it, unfortunately none of the ones I use. 
> Also the semantics and apis for jack sensing in the lower layers are
> still very much in flux. The current API is based around input
> devices, and there has been some work in using normal ALSA controls
> instead. Also, the naming of the devices is not really standardized so
> it is hard to figure our which profile to activate when something is
> sensed.
> So in summary: this is definitely planned, but I haven't started
> working on that. The lower layers are not really ready yet. And It's
> unlikely that I'll start working on this before either AD198x or
> ALC889A (the two HDA implementations that I have here) gain jack
> sensing support in ALSA.
> Lennart

Hi Lennart
It is good to hear it is planned.
I can confirm that for the hda-intel the jack plug was detected and
output was redirected automatically using pure alsa.


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