[mythtv-users] Digital Audio Passthrough not working Mythtv 0.24-fixes

[David Knight]

On Tue, November 9, 2010 11:28 pm, Jean-Yves Avenard wrote:

>> 2010-11-09 20:43:01.632 Opening ALSA audio device 'default'.
>> 2010-11-09 20:43:01.646 ALSA, Error: Channels count 6 not available:
>> Invalid argument
>> 2010-11-09 20:43:01.646 ALSA, Error: Unable to set ALSA parameters:
>> Invalid argument
>
> Myth isn't trying to do passthrough here but instead use 5.1 LPCM...
> You have checked the LPCM box in the audio settings ; uncheck it as
> your hardware doesn't support it.
>
> LPCM is only supported with analog or hdmi ; SPDIF doesn't support
> multichannels LPCM
>

The "Analog or LPCM" checkbox is greyed out and I'm unable to change the
setting, only DTS and Dolby Digital are available.

>> 2010-11-09 20:43:01.646 AudioOutput Error: Aborting reconfigure
>> 2010-11-09 20:43:01.808 Player(0): Video timing method: USleep with busy
>> wait
>> 2010-11-09 20:43:01.850 TV: Changing from None to WatchingPreRecorded
>> 2010-11-09 20:43:02.118 ALSA, Error: getBufferedOnSoundcard() called
>> with
>> pcm_handle == NULL!
>> 2010-11-09 20:43:02.143 VDPAU: Added 2 output surfaces (total 4, max 4)
>> 2010-11-09 20:43:02.160 ALSA, Error: getBufferedOnSoundcard() called
>> with
>> pcm_handle == NULL!
>>
>
> Fix your settings, and it should work fine.
>
> JY

When running the scan process "ALSA:default" isn't detected however
"ALSA:default:CARD=Nvidia" is detected but shows "No digital passthrough"
under Audio capabilities. I have been manually entering "ALSA:default" as
the audio output device.

Will have another play with the configuration and post the logs again if
I'm still stuck.

Cheers

Dave