[mythtv-users] spdif output failure.

[Oz]

I have a newly installed system corei7 nvdia geforce 240 gts on ubuntu 
9.10 (mythbuntu, mythtv 0.22)

The SPDIF sound works fine with the system sound. either on the optical 
or the HDMI output.
When I try to play a recording in mythfrontend ( I set the mythtv output 
to either hdmi passthrough or alsa:iec958 passthrough)  there is no sound.


I get the following error in mythtv.

2009-10-18 23:13:15.777 AFD: Opened codec 0x7f2cac7caa80, id(H264) 
type(Video)
2009-10-18 23:13:15.777 AFD: codec AC3 has 2 channels
2009-10-18 23:13:15.778 AFD: Opened codec 0x7f2cac7caeb0, id(AC3) 
type(Audio)
2009-10-18 23:13:15.780 Opening audio device 'spdif'. ch 6(2) sr 48000
2009-10-18 23:13:15.780 Opening ALSA audio device 'iec958:{ AES0 0x02 }'.
2009-10-18 23:13:15.825 AudioOutput Error: Channels count (6) not 
available: Invalid argument
2009-10-18 23:13:15.825 AudioOutput Error: Unable to set ALSA parameters
2009-10-18 23:13:15.826 NVP(0): Disabling Audio, reason is: Unable to 
set ALSA parameters
2009-10-18 23:13:16.088 NVP(0): Forcing decode extra audio option on 
(Video method requires it).


any ideas how to fix that?

-Thanks