I had balena sound working beautifully on my RPI3. I added a wifiberry DAC and was even happier.
Decided to change the bluetooth device name. After the config apply and reboot no sound ever came out. Neither with the base RPI without dac and sound=on in dt params and remove dtoverlay and unset the device name- so back to basics - still nothing.
I’m going crazy trying to work out what happened.
Seems I get a BT connection, but nothing from the DAC output or the phono output.
Did notice a log entry:
amixer: Unable to find simple control ‘PCM’,0
but that was there from the beginning after I connected the dac (and it worked…)
Any possible help welcomed.