/home/bill/System_maintenance/pulseaudio install stdout.txt ******************************** 25Mar2018 search "Raspberry Pi and "Fatal Error: Unable to connect to PulseAudio: OK"" https://raspberrypi.stackexchange.com/questions/44497/having-an-issue-with-bluetooth-manager-pairing-on-the-pi Had the same problem and found this to work. The error in syslog as mentioned in previous post: "Protocol not available" suggest the Sound (Multimedia device) protocol is not available. Make sure the PulseAudio Bluetooth Library is installed: sudo apt-get install pulseaudio-module-bluetooth then make sure the Pulse Audio server is actually running. First stop it: sudo killall pulseaudio >> my pulseaudio had been kiolled (?!? surprise to me!) and start it: pulseaudio --start >> OK Assuming you've paired the bluetooth device successfully and it is trusted simply run bluetoothclt again and connect xx:xx:xx:xx:xx:xx >> My bluetooth-manager still locked up answered Mar 16 '17 at 22:04, Rens ******************************** 25Mar2018 install on RaspPi see "/home/bill/System_maintenance/bluetooth setup on RaspPi.txt" sudo apt-get install pulseaudio pavucontrol pulseaudio-module-bluetooth >"/home/bill/System_maintenance/pulseaudio install stdout.txt" >> OK for install (stdout listed below) If you open the PulseAudio panel now, it may not show much information, especially whether or not you can switch to the Bluetooth speaker. You’ll more than likely need to reboot the Raspberry Pi – do that now! >> BUT when I cold rebboted then tried to launch pulseaudio, I get the error : >> "Fatal Error: Unable to connect to PulseAudio: OK" +-----+ stdout from install : Reading package lists... Building dependency tree... Reading state information... pulseaudio is already the newest version. pulseaudio set to manually installed. pulseaudio-module-bluetooth is already the newest version. The following extra packages will be installed: libgtkmm-3.0-1 The following NEW packages will be installed: libgtkmm-3.0-1 pavucontrol 0 upgraded, 2 newly installed, 0 to remove and 122 not upgraded. Need to get 938 kB of archives. After this operation, 4,310 kB of additional disk space will be used. Do you want to continue? [Y/n] WARNING: The following packages cannot be authenticated! libgtkmm-3.0-1 pavucontrol Install these packages without verification? [y/N] Get:1 http://mirrordirector.raspbian.org/raspbian/ jessie/main libgtkmm-3.0-1 armhf 3.14.0-1 [836 kB] Get:2 http://mirrordirector.raspbian.org/raspbian/ jessie/main pavucontrol armhf 2.0-3 [103 kB] Fetched 938 kB in 2s (441 kB/s) Selecting previously unselected package libgtkmm-3.0-1:armhf. (Reading database ... (Reading database ... 5% (Reading database ... 10% (Reading database ... 15% (Reading database ... 20% (Reading database ... 25% (Reading database ... 30% (Reading database ... 35% (Reading database ... 40% (Reading database ... 45% (Reading database ... 50% (Reading database ... 55% (Reading database ... 60% (Reading database ... 65% (Reading database ... 70% (Reading database ... 75% (Reading database ... 80% (Reading database ... 85% (Reading database ... 90% (Reading database ... 95% (Reading database ... 100% (Reading database ... 125145 files and directories currently installed.) Preparing to unpack .../libgtkmm-3.0-1_3.14.0-1_armhf.deb ... Unpacking libgtkmm-3.0-1:armhf (3.14.0-1) ... Selecting previously unselected package pavucontrol. Preparing to unpack .../pavucontrol_2.0-3_armhf.deb ... Unpacking pavucontrol (2.0-3) ... Processing triggers for gnome-menus (3.13.3-6) ... Processing triggers for desktop-file-utils (0.22-1) ... Processing triggers for mime-support (3.58) ... Processing triggers for man-db (2.7.5-1~bpo8+1) ... Setting up libgtkmm-3.0-1:armhf (3.14.0-1) ... Setting up pavucontrol (2.0-3) ... Processing triggers for libc-bin (2.19-18+deb8u10) ...