folgende, etwas "umständliche" Lösung konnte ich für mich finden ...
sudo mv /etc/bluetooth /etc/bluetooth.backup
sudo apt-get install --reinstall bluez
Manipulation der etc/bluetooth/audio.conf Datei wie folgt
# Configuration file for the audio service
# This section contains options which are not specific to any
# particular interface
[General]
Enable = Source,Sink,Headset,Gateway,Control,Media
Disable = Socket
# Switch to master role for incoming connections (defaults to true)
Master=true
# If we want to disable support for specific services
# Defaults to supporting all implemented services
#Disable=Gateway,Source,Socket
# SCO routing. Either PCM or HCI (in which case audio is routed to/from ALSA)
# Defaults to HCI
#SCORouting=PCM
# Automatically connect both A2DP and HFP/HSP profiles for incoming
# connections. Some headsets that support both profiles will only connect the
# other one automatically so the default setting of true is usually a good
# idea.
AutoConnect=true
# Headset interface specific options (i.e. options which affect how the audio
# service interacts with remote headset devices)
[Headset]
# Set to true to support HFP, false means only HSP is supported
# Defaults to true
HFP=true
# Maximum number of connected HSP/HFP devices per adapter. Defaults to 1
MaxConnected=1
# Set to true to enable use of fast connectable mode (faster page scanning)
# for HFP when incoming call starts. Default settings are restored after
# call is answered or rejected. Page scan interval is much shorter and page
# scan type changed to interlaced. Such allows faster connection initiated
# by a headset.
FastConnectable=false
# Just an example of potential config options for the other interfaces
#[A2DP]
SBCSources=1
MPEG12Sources=0
Datei speichern
danach
pactl list | grep -i module-bluetooth-discover
wenn der Output des obigen Befehls leer ist folgendes machen
pactl load-module module-bluetooth-discover
danach sollte das entsprechende Bluetooth Audio Gerät unter PulseAudio VolumeControl zur Auswahl zur Verfügung stehen.
Variante 2
der Entwickler von Blueman biette auf launchpad eine PPA an für die aktuellste Version von Blueman. Bei manchen hat die Installation der Datei von der PPA dann geholfen, bei anderen wiederum leider nicht (lt. Forum)
lg