Re:Initial M1 support merged into Linux SoC tree
by vetinari on Friday April 09, 2021 @12:31PM
(#26752617)
A2DP doesn't work simultaneously with HFP (i.e. "with the (bluetooth) mic on"). That's not Linux limitation, that's Bluetooth limitation and other OSes - Android, MacOS, iOS, Windows - behave exactly the same.
One solution is getting a wired mic.