[mythtv-users] what to tweak when HDMI isn't device 0?

[Andrew Cagney]

Hi,

I've an acer revo R1600 running mythbuntu.  It has two HVR-950Q
devices  (each creates a snd-usb-audio input device) and (somewhere)
the nvidia code creates a third sound device.  Sound is meant to be
going out via the HDMI cable.

I'm finding that sometimes sound isn't working, the front end fails with:

2010-02-04 11:36:59.815 Opening audio device 'hdmi'. ch 2(2) sr 48000
2010-02-04 11:36:59.815 Opening ALSA audio device 'hdmi'.
ALSA lib confmisc.c:1286:(snd_func_refer) Unable to find definition
'cards.USB-Audio.pcm.hdmi.0:CARD=0,AES0=4,AES1=130,AES2=0,AES3=2'
ALSA lib conf.c:3513:(_snd_config_evaluate) function snd_func_refer
returned error: No such file or directory
ALSA lib conf.c:3985:(snd_config_expand) Evaluate error: No such file
or directory
ALSA lib pcm.c:2211:(snd_pcm_open_noupdate) Unknown PCM hdmi
2010-02-04 11:36:59.817 AudioOutput Error: snd_pcm_open(hdmi): No such
file or directory
2010-02-04 11:36:59.817 NVP(1): Disabling Audio, reason is:
snd_pcm_open(hdmi): No such file or directory
2010-02-04 11:37:00.311 NVP(1): Forcing decode extra audio option on
(Video method requires it).

and I suspect it is because the snd-usb-audio driver is sometimes
getting in first device (if I blacklist that driver all is well).

Any suggestions?