Today my bluetooth headset stopped working. I haven't modified anything recently (although a few days ago I was trying to get a bluetooth headset to automatically connect in a2dp mode, which involved installing blueman and re-pairing with it, but I've connected and rebooted several times since making that change and everything was working).
Now when I try to connect the headset I get:
Connection Failed: blueman.bluez.errors.DBusFailedError: Protocol Not available
Based on a few things from here (Bluetooth – Connection Failed: blueman.bluez.errors.DBusFailedError: Protocol Not available) and other Internet searches, I've tried:
$ sudo apt-get install pulseaudio-module-bluetooth
$ pactl load-module module-bluetooth-discover
And I've tried reinstalling things:
$ sudo apt-get --purge --reinstall install bluetooth bluez blueman pulseaudio pulseaudio-module-bluetooth
$ sudo /etc/init.d/networking restart
[ ok ] Restarting networking (via systemctl): networking.service.
$ sudo /etc/init.d/bluetooth restart
[ ok ] Restarting bluetooth (via systemctl): bluetooth.service.
And of course rebooting, but nothing seems to help, and I can't figure out what protocol it's talking about, since I can see the headset and pair with it, but not make an audio connection.
I'm running Ubuntu 18.04.1. Some other details:
$ dpkg -l | grep blue
blueman 2.0.5-1ubuntu1
bluetooth 5.48-0ubuntu3.1
bluez 5.48-0ubuntu3.1
bluez-cups 5.48-0ubuntu3.1
bluez-obexd 5.48-0ubuntu3.1
gir1.2-gnomebluetooth-1.0:amd64 3.28.0-2ubuntu0.1
gnome-bluetooth 3.28.0-2ubuntu0.1
indicator-bluetooth 0.0.6+17.10.20170605-0ubuntu3
libbluetooth3:amd64 5.48-0ubuntu3.1
libgnome-bluetooth13:amd64 3.28.0-2ubuntu0.1
pulseaudio-module-bluetooth 1:11.1-1ubuntu7.1
$ sudo service bluetooth status
* bluetooth.service - Bluetooth service Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset Active: active (running) since Mon 2019-02-04 14:36:47 PST; 1min 13s ago
Docs: man:bluetoothd(8) Main PID: 6912 (bluetoothd) Status: "Running"
Tasks: 1 (limit: 4915) CGroup: /system.slice/bluetooth.service
└─6912 /usr/lib/bluetooth/bluetoothd
Feb 04 14:36:47 AVB systemd[1]: Starting Bluetooth service... Feb 04 14:36:47 AVB bluetoothd[6912]: Bluetooth daemon 5.48 Feb 04 14:36:47 AVB systemd[1]: Started Bluetooth service. Feb 04 14:36:47 AVB bluetoothd[6912]: Starting SDP server Feb 04 14:36:47 AVB bluetoothd[6912]: Bluetooth management interface 1.14 initialized
$ dmesg | grep Bluetooth
[ 5.197632] Bluetooth: Core ver 2.22
[ 5.197654] Bluetooth: HCI device and connection manager initialized
[ 5.197657] Bluetooth: HCI socket layer initialized
[ 5.197660] Bluetooth: L2CAP socket layer initialized
[ 5.197664] Bluetooth: SCO socket layer initialized
[ 5.349217] Bluetooth: hci0: Firmware revision 0.1 build 185 week 49 2017
[ 5.492623] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 5.492625] Bluetooth: BNEP filters: protocol multicast
[ 5.492628] Bluetooth: BNEP socket layer initialized
[ 16.972106] Bluetooth: RFCOMM TTY layer initialized
[ 16.972113] Bluetooth: RFCOMM socket layer initialized
[ 16.972117] Bluetooth: RFCOMM ver 1.11
[ 84.672241] Bluetooth: hci0: last event is not cmd complete (0x0f)
$ hciconfig
hci0: Type: Primary Bus: USB
BD Address: 74:70:FD:B6:73:0C ACL MTU: 1021:4 SCO MTU: 96:6
UP RUNNING PSCAN ISCAN INQUIRY
RX bytes:18753 acl:61 sco:0 events:738 errors:0
TX bytes:14257 acl:60 sco:0 commands:267 errors:0
$ lspci -knn | grep Net -A3
02:00.0 Network controller [0280]: Intel Corporation Wireless 8265 / 8275 [8086:24fd] (rev 78)
Subsystem: Intel Corporation Dual Band Wireless-AC 8265 [8086:0010]
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi
$ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 8087:0a2b Intel Corp.
Bus 001 Device 002: ID 13d3:5a07 IMC Networks
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
$ ps aux | grep blue
me 2032 0.0 0.6 694048 54240 tty2 Sl+ 14:19 0:01 /usr/bin/python3 /usr/bin/blueman-applet
me 2091 0.0 0.0 82728 6832 ? Ss 14:19 0:00 /usr/lib/bluetooth/obexd
root 6912 0.0 0.0 37992 6096 ? Ss 14:36 0:02 /usr/lib/bluetooth/bluetoothd
Any suggestions on where to look next?
Thanks.
Best Answer
For me just reloading the module by executing:
helped solving the issue.