Can’t connect a bluetooth headset

[johackim]

Creating a bug report/issue

[x] I have searched the existing open and closed issues

Required Information

• DietPi version:

G_DIETPI_VERSION_CORE=9
G_DIETPI_VERSION_SUB=2
G_DIETPI_VERSION_RC=1
G_GITBRANCH='master'
G_GITOWNER='MichaIng'

• Distro version: bookworm 0
• Kernel version: Linux DietPi 6.1.21-v8+ #1642 SMP PREEMPT Mon Apr 3 17:24:16 BST 2023 aarch64 GNU/Linux
• Architecture: arm64
• SBC model: RPi 3 Model B (aarch64)
• SD card used: SanDisk ultra

Steps to reproduce

1. dietpi-config
2. Advanced Options
3. Bluetooth: [On]
4. bluetoothctl scan on
5. bluetoothctl pair DEVICE_ID
6. bluetoothctl trust DEVICE_ID
7. bluetoothctl connect DEVICE_ID

Expected behaviour

• Successfully connecting my bluetooth headset (Bose QC45)

Actual behaviour

• I can't connect my bluetooth headset (Bose QC45), I receive this bluetoothctl error: Failed to connect: org.bluez.Error.Failed br-connection-profile-unavailable

Extra details

• The end goal is to use a bluetooth headset with kodi.
• pulseaudio doesn't work with kodi but I can use pipewire instead.
• In any cases, I can't use kodi with a bluetooth headset

[MichaIng]

See here: #3456

Try this:

apt install bluez-alsa-utils
aplay -l
speaker-test -D bluealsa

I am not sure whether the bluealsa service does/tries binding to BT audio devices automatically or just allows manual binding, or is not related to this at all. Also probably a reboot is required, or unmuting the volume:

alsamixer -D bluealsa

When this BT audio PCM generally works, you can make it the default:

echo -e 'pcm.!default bluealsa\nctl.!default bluealsa' > /etc/asound.conf

[johackim]

Thank you very much @MichaIng!

It works 😀!

However, I have to connect my Bluetooth headset before running Kodi, or exit Kodi to reconnect my Bluetooth headset if the connection is lost.

I can't autostart Kodi.

[MichaIng]

Okay, so pairing still needs to be done manually. Somehow makes sense. I have not much experience with bluez, but wonder whether there is a native way to have it connecting to a particular device automatically (given that the device accepts it). Else, you could create a script for that and place it into /var/lib/dietpi/postboot.d to be executed automatically on boot.