I add this extra information in case it works: I have some "Bluedio F2" brand headphones that do not activate the microphone, however, my Philips SHB4000 hearing aids detect them without any problem (the input). Where in Windows and Android the Bluedio & Philips Microphone works for me without problems.
Ubuntu 18.10 nasatome at nasatome-pc in ~ $ uname -r 4.18.0-10-generic nasatome at nasatome-pc in ~ $ bluetoothctl Agent registered [Bluedio F]# devices Device 18:07:21:27:08:11 Bluedio F Device 00:1E:7C:37:EF:22 Philips SHB4000 [Bluedio F]# info 18:07:21:27:08:11 Device 18:07:21:27:08:11 (public) Name: Bluedio F Alias: Bluedio F Class: 0x00240404 Icon: audio-card Paired: yes Trusted: yes Blocked: no Connected: yes LegacyPairing: no UUID: Audio Sink (0000110b-0000-1000-8000-00805f9b34fb) UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb) UUID: A/V Remote Control (0000110e-0000-1000-8000-00805f9b34fb) UUID: Handsfree (0000111e-0000-1000-8000-00805f9b34fb) [Bluedio F]# info 00:1E:7C:37:EF:22 Device 00:1E:7C:37:EF:22 (public) Name: Philips SHB4000 Alias: Philips SHB4000 Class: 0x00240404 Icon: audio-card Paired: yes Trusted: yes Blocked: no Connected: no LegacyPairing: no UUID: Headset (00001108-0000-1000-8000-00805f9b34fb) UUID: Audio Sink (0000110b-0000-1000-8000-00805f9b34fb) UUID: A/V Remote Control (0000110e-0000-1000-8000-00805f9b34fb) UUID: Handsfree (0000111e-0000-1000-8000-00805f9b34fb) UUID: PnP Information (00001200-0000-1000-8000-00805f9b34fb) Modalias: bluetooth:v0039p13A4d0115 ManufacturerData Key: 0x5349 ManufacturerData Value: 53 43 SC [Bluedio F]# https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1768625 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1576559 Title: Refused to switch profile to headset_head_unit: Not connected To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1576559/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs