Audio: Way to disable HDMI or set USB as default?

[hatenick]

Is this the usage scenario?

1. Audio device stays on
2. Pi is powered off then at some point powered back on
3. Audio output in Moode Audio Config reverts to HDMI

Well

1. RPI always on forever
2. DAC is powered on and ALSA CARD id 0 or 2 at this time depending on the first DAC power state at the RPI boot time. The index 0 or 2 does not make any difference.
3. DAC is powered off. ALSA makes the HDMI 0 audio out as index ALSA CARD 0 even if DAC was 0 beforehand. Why? I do not know? At this time moOde makes HDMI audio 0 as current output. I can see this by going to Audio in settings.
4. DAC is powered on and now it has ALSA CARD index 2 now. So I have to change it to index 2 third card from the drop down.
5. DAC is powered off and output again changes to HDMI 0 as index 0
6. DAC is powered on goto 4

I believe you have

Code:

sudo alsactl save

at some point so you have DAC is 0 always and do not have the problem? Just a wild guess? Maybe I can try to save ALSA settings, but HDMI audio off now so USB DAC is always 0 or I do not have any sound card