I'm on Fedora 26, using PulseAudio 10.0 and I'm having the same issue with my Sony MDR100ABN headset. I've tried all sorts of things, and the only thing that consistently works is to:
1. Let it connect automatically when I turn on my headset
2. Disconnect through bluetoothctl
3. Reconnect through bluetoothctl
4. Use pacmd set-card-profile to set a2dp_sink
I've tried disabling the GDM pulseaudio, changing 'load-module module-bluetooth-discover headset=<mode>' in default.pa, adding 'load-module module-switch-on-connect' to default.pa, adding 'Disable=Headset' to '[General]' in bluetooth/main.conf, and pretty much any combination of those changes.
I'm on Fedora 26, using PulseAudio 10.0 and I'm having the same issue with my Sony MDR100ABN headset. I've tried all sorts of things, and the only thing that consistently works is to:
1. Let it connect automatically when I turn on my headset
2. Disconnect through bluetoothctl
3. Reconnect through bluetoothctl
4. Use pacmd set-card-profile to set a2dp_sink
I've tried disabling the GDM pulseaudio, changing 'load-module module- bluetooth- discover headset=<mode>' in default.pa, adding 'load-module module- switch- on-connect' to default.pa, adding 'Disable=Headset' to '[General]' in bluetooth/ main.conf, and pretty much any combination of those changes.