Bluetooth: protocol not available
1sudo apt install pulseaudio-module-bluetoothAdd to /lib/systemd/system/bthelper@.service:
1ExecStartPre=/bin/sleep 41sudo systemctl start sys-subsystem-bluetooth-devices-hci0.device
2sudo hciconfig hci0 down
3sudo killall pulseaudio
4systemctl --user enable --now pulseaudio.service
5sudo systemctl restart bluetooth.service