Issues with BlueALSA and BOSE A2DP Speaker on DietPi (Mopidy Setup)

Troubleshooting
1

Hi everyone,

I’m trying to set up my BOSE Bluetooth speaker on DietPi using BlueALSA as an A2DP device for Mopidy, but I’m running into connection issues. I would appreciate any guidance.

What I’ve done so far:

  1. Installed BlueALSA:
which bluealsa
/usr/bin/bluealsa
  1. Started BlueALSA:
sudo bluealsa -p a2dp-sink
  • BlueALSA starts and logs:
Acquired D-Bus service name: org.bluealsa
Registering media application: /org/bluez/hci0
Exporting media endpoint object: /org/bluez/hci0/A2DP/SBC/sink/1
  1. Prepared the speaker in pairing mode
  2. Tried connecting the speaker via bluetoothctl:
bluetoothctl
power on
agent on
default-agent
scan on
trust xx:C6:xx:66:xx:99
connect xx:xx:xx:66:xx:99
  • Result:
Failed to connect: org.bluez.Error.Failed br-connection-profile-unavailable
  1. Tried testing audio via ALSA:
aplay -D BOSE /usr/share/sounds/alsa/Front_Center.wav
  • Result:
Couldn't get BlueALSA PCM: PCM not found
  1. BlueALSA virtual PCMs are not listed yet (bluealsa-aplay -L shows nothing)

System:

  • DietPi (latest version) on Raspberry Pi
  • Mopidy installed
  • BlueZ + BlueALSA Utilities installed

Problem / Question:

  • The BOSE speaker does not connect properly; the A2DP profiles are unavailable even though BlueALSA is running.
  • How can I get the speaker to connect correctly so BlueALSA creates the PCM and I can use it in Mopidy?
  • Are there any special considerations for DietPi / headless setups for Bluetooth A2DP?

Thanks in advance for your help!