13.2.25

ubuntu: connect bluetooth

 https://marcelbootsman.nl/notes/how-to-connect-bluetooth-headphones-automatically-in-ubuntu


set default audio profile for bluetooth headset

https://askubuntu.com/questions/1248886/how-to-set-default-profile-for-bluetooth-headset


enable a2dp sound profile

https://wiki.archlinux.org/title/Bluetooth_headset#A2DP_sink_profile_is_unavailable