[alsa-devel] [Alsa-devel] [i8x0] docking station audio-out ceased to work

[Andreas Happe]

On Mon, 2007-04-02 at 13:27 +0200, Takashi Iwai wrote:
> Still wondering why setting AC97-SPSA to 0 doesn't work in this
> case.  Try the following:
> 
> - plug to the analog output on docking station
> - set "IEC958 Playback AC97-SPSA" to zero via alsamixer or whatever
> - set "IEC958 Playback Switch" on
> - run
> 	% aplay -Ddefault foo.wav

| aplay -Ddefault shutdown.wav 
Playing WAVE 'shutdown.wav' : Signed 16 bit Little Endian, Rate 44100
Hz, Stereo

-> Silence

| aplay -Dspdif startup.wav 
aplay: main:550: audio open error: Device or resource busy

-> I got the totem player open in the background, it didn't produce any
sounds but seems to lock the pcm channel.

After closing totem player:

| arcs at storm:/usr/share/sounds$ aplay -Dspdif startup.wav 
Playing WAVE 'startup.wav' : Signed 16 bit Little Endian, Rate 44100 Hz,
Stereo

-> played sound

| aplay -Ddefault startup.wav 
Playing WAVE 'startup.wav' : Signed 16 bit Little Endian, Rate 44100 Hz,
Stereo

-> still no sound

hoped that helped.

cheers,
Andreas