Hey there @nic
I’ve just been taking a look at this and I wonder if it’s something as simple as the volume being turned down? If you’re hearing the sound effects playing via the DAC when you connect that proves the device is working OK.
The command that executes when you connect a device is:
aplay -D hw:0,0 /usr/src/sounds/connect.wav (see here). Therefore if you run this command you should hear the same sound or to use the sound effect described above:
aplay -D hw:0,0 /usr/share/sounds/alsa/Front_Left.wav. Either of these should give you some audio. If they aren’t then it’s probably a volume issue - you’ll see in the script the system adjusts the volume before playing the connect/disconnect sound to make sure it’s heard.
You could also try running
alsamixer which will give you some control over the output volume, or you can also set the
SYSTEM_OUTPUT_VOLUME environment variable a bit higher (by default it is set to
75), as well as making sure your bluetooth device is turned up when you connect.
Keep us posted with your progress!