I’m on a Pinebook Pro and I recently got a set of bluetooth headphones with inbuilt mic (https://www.amazon.co.uk/gp/product/B07C5VW8D1/).
The bluetooth pairing works fine, and I can get audio output through the headphone speakers, but the microphone doesn’t seem to be detected, and the “Recording devices” list on audio settings shows only “Analog Input (Built-in Audio Stereo)”. This is true both using bluetooth and wired connection.
Any ideas?
(Cross-posted at forum.pine64.org.)