Public bug reported:

Binary package hint: pulseaudio

Hardy beta, clean install.

ALSA sees the integrated sound card in my system and its analog and
digital outputs, with no problem:

 aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC883 Analog [ALC883 Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: ALC883 Digital [ALC883 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

However, pulseaudio is only using the Analog output.
Also, pavucontrol only shows the analog output device (ALC883 Analog).

I think this is a bug, there seems to be no way to have pulseaudio
output to the digital (s/pdif / ie958) sink.

This: http://www.pulseaudio.org/ticket/139
may have something to do with this.
 I followed the instructions:
           - added the following line to /etc/pulse/default.pa: 
               load-module module-alsa-sink device=hw:0,1      ## Card 0, 
Device 1
           - Kill and restart the audio server:
               pulseaudio -k
               pulseaudio -D

Now the digital output shows up in pavucontrol, and the applications
that use pulse also use the digital output.  All this shouldn't be
needed (output to digital by default) or at least an easier digital
output activation is necessary.

Thanks

** Affects: pulseaudio (Ubuntu)
     Importance: Undecided
         Status: New

-- 
[Hardy] S/Pdif / digital output not available in pulseaudio
https://bugs.launchpad.net/bugs/205717
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