I have a problem with bluetooth : I can connect to my handsfree device using bluetooth. By default it connects in A2DP mode (good audio quality, but no microphone available). However, when I try to switch back to HSP/HFP (microphone, even if the audio quality is lower) it fails with an error in syslog :
[pulseaudio] module-bluez5-device.c: Refused to switch profile to headset_head_unit: Not connected
And it's very strange since last year I was able to use my bluetooth handsfree device without any problem ! I tried to follow some idea in the web, but no one works for me...
Any idea ?
Thank you !
PS : I'm using pulseaudio version 9.0.