Bluetooth headset

No audio service is available
After updating to -4.97 it might happen, that a Bluetooth headset is connected, but ALSA/PulseAudio fail to pick up the connected device.

An error message like this might be shown in the output of PulseAudio: I: [pulseaudio] module-card-restore.c: Restoring profile for card bluez_card.00_16_94_0B_6F_DE. I: [pulseaudio] card.c: Created 10 "bluez_card.00_16_94_0B_6F_DE" bt_audio_service_open: connect failed: Connection refused (111) W: [pulseaudio] module-bluetooth-device.c: Bluetooth audio service not available W: [pulseaudio] module-bluetooth-device.c: Service not connected I: [pulseaudio] card.c: Freed 10 "bluez_card.00_16_94_0B_6F_DE" E: [pulseaudio] module.c: Failed to load module "module-bluetooth-device" (argument: "address="00:16:94:0B:6F:DE" path="/org/bluez/31716/hci0/dev_00_16_94_0B_6F_DE""): initialization failed.

To fix this, the following needs to be done:
 * 1) Set Enable=Socket in /etc/bluetooth/audio.conf like this:


 * 1) Restart bluetoothd by doing one of the following things:
 * 2) * Turn the software wireless kill switch off and on again
 * 3) * Turn the hardware wireless kill switch off and on again
 * 4) * Reboot the computer
 * 5) Reconnect the Bluetooth headset