[mythtv-users] Alsa SPDIF SP13000 (via8237)

[Bryan Bennetts]

On Monday 14 Aug 2006 01:31, Robin Gilks wrote:
> A common problem this week it seems is getting all parts of Mythtv to
> output via SPDIF!
>
> My hardware seems to work OK in that xine setup in passthrough mode is
> fine and I can use "aplay -D spdif xxx.wav" but I can't find the hardware
> device that actually outputs to the SPDIF connector. ie. "aplay -D
> hw:0,0,3 xxx.wav" does nothing. This means I can't map the hardware to a
> virtual device to set up rate conversion etc.
>
> Device 0 has 4 subdevices - tried all of them, nowt...
> Device 1 has 1 subdevice - no luck there either.
>
> It seems that maybe alsa has a bug (I'm using 1.0.11) such that there is
> no mapping to a hw device for the SPDIF output? Anyone with an Epia
> SP13000 had any luck?
>
> My editor is poised over Mike Dean's .asoundrc file to make the necessary
> changes...

Hi, 

For my machine :

stella ~ # aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: V8237 [VIA 8237], device 0: VIA 8237 [VIA 8237]
  Subdevices: 4/4
  Subdevice #0: subdevice #0
  Subdevice #1: subdevice #1
  Subdevice #2: subdevice #2
  Subdevice #3: subdevice #3
card 0: V8237 [VIA 8237], device 1: VIA 8237 [VIA 8237]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
stella ~ # cat /proc/asound/pcm
00-01: VIA 8237 : VIA 8237 : playback 1 : capture 1
00-00: VIA 8237 : VIA 8237 : playback 4 : capture 1

Looks pretty similar to what you have.  I use hw:0,1, and get nice rate 
converted sound output from mythmusic using the (pretty std) .asoundrc that's 
floating around the web.  I had what seemed to be the same problem as you 
after updating my alsa.  Check this out and see if it helps...

http://forums.gentoo.org/viewtopic-t-485631-highlight-.html