bluetoothd: a2dp-sink profile connect failed for AA:BB:CC:DD:EE:00: Protocol not available

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Source: https://g751jy.wordpress.com/about/parrot-zik-bluetooth-headset/
        https://bbs.archlinux.org/viewtopic.php?id=194006
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    Bug and possible solution: actually I found a bug in that make the headset unusable, it seems that the pulse audio module: module-bluetooth-discover works only if started after the X11 session is up. So I have a workaround.

    Edit the file:

    /etc/pulse/default.pa

    and comment out (with an # at the beginning of the line) the following line:

    #load-module module-bluetooth-discover

    now edit the file:

    /usr/bin/start-pulseaudio-x11

    and after the lines:

       if [ x”$SESSION_MANAGER” != x ] ; then
            /usr/bin/pactl load-module module-x11-xsmp “display=$DISPLAY session_manager=$SESSION_MANAGER” > /dev/null
        fi

    add the following line:

        /usr/bin/pactl load-module module-bluetooth-discover

    This way the Pulse audio’s Bluetooth modules will not be downloaded at boot time but after x11 is started.