Arch Linux

DoomEy3

Member

Registered: Yesterday

Posts: 2

Cannot connect bluetooth devices, error message "br-connection-uknown"

I installed arch manually for the 1st time while following the wiki to the best of my ability. I installed very barebones utils+browser+sway. The laptop is thinkpad T440p from a retail store (Idk if any hardware was replaced from the original).

Issue is that whenever I try to connect my headphones (sony WH-1000XM4), the connection fails and i get the error message "br-connection-uknown." I've tried both bluetoothctl and bluetui, the same issue on both. I have the same issue with my reciever (sony STR-DH190). When I used to run endeavour os on the same hardware I didnt have this issue. I've also tried my friends speaker but I could connect just fine (sadly I dont remember the model but it wasnt sony for sure). Maybe it's a sony issue? I couldn't find any salution that worked online.

I've already tried the following:
Unpairing the device (this makes it so that the connection is sucesfull but after 1-2 seconds it fails, without unpairing 1st the connection doesnt even form)
Doing factory reset on the headphones
Rebooting linux
Trying to connect from bash before loading sway
Restarting bluetooth.service

The issue remains. Any ideas on what I could try to fix the issue or at least diagnose what is causing the problem?

Update:
I tried connecting to my friends JBL Tune headphones and I had the same issue, so the problem isn't sony I think
I also tried disabling NetowkManager.service, rebooting and tried to connect the headphones, didnt work

This is output from journalctl when I try pairing with the headphones:
449]: src/service.c:btd_service_connect() a2dp-sink profile connect failed for 80:99:E7:AE:C2:BD: Protocol not available

Last edited by DoomEy3 (Today 07:06:32)

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 78,491

Re: Cannot connect bluetooth devices, error message "br-connection-uknown"

449]: src/service.c:btd_service_connect() a2dp-sink profile connect failed for 80:99:E7:AE:C2:BD: Protocol not available

https://wiki.archlinux.org/title/Bluetooth#Audio
Please post the output of

find /etc/systemd -type l -exec test -f {} \; -print | awk -F'/' '{ printf ("%-40s | %s\n", $(NF-0), $(NF-1)) }' | sort -f

in [code][/code] tags

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NFrost

Member

Registered: Today

Posts: 1

Re: Cannot connect bluetooth devices, error message "br-connection-uknown"

Hi, I noticed today the exact same problem. Some weeks ago it was all working fine but suddenly not. I am using the old UE Megaboom and Echo Dot.

Here is my output

autovt@.service                          | system
bluetooth.service                        | bluetooth.target.wants
cups.path                                | multi-user.target.wants
cups.service                             | multi-user.target.wants
cups.service                             | printer.target.wants
cups.socket                              | sockets.target.wants
dbus-org.bluez.service                   | system
dbus-org.freedesktop.nm-dispatcher.service | system
dbus-org.freedesktop.resolve1.service    | system
getty@tty1.service                       | getty.target.wants
NetworkManager-wait-online.service       | network-online.target.wants
NetworkManager.service                   | multi-user.target.wants
p11-kit-server.socket                    | sockets.target.wants
pcscd.socket                             | sockets.target.wants
pipewire-pulse.socket                    | sockets.target.wants
pipewire-session-manager.service         | user
pipewire.socket                          | sockets.target.wants
remote-fs.target                         | multi-user.target.wants
seatd.service                            | multi-user.target.wants
systemd-resolved.service                 | sysinit.target.wants
systemd-userdbd.socket                   | sockets.target.wants
wireplumber.service                      | pipewire.service.wants

I was looking more into it and wireplumber couldn't find "bluez.lua"

wireplumber[767]: wp-internal-comp-loader: <WpCore:0x555aade13290> optional component 'monitor.bluez [script/lua: monitors/bluez.lua]' failed to load: Could not locate script 'monitors/bluez.lua'

The problem is  ".config/wireplumber/wireplumber.conf". It references still to "monitors/bluez.lua"

  {
    name = monitors/bluez.lua, type = script/lua
    provides = monitor.bluez
    requires = [ support.export-core,
                 pw.client-device,
                 pw.client-node,
                 pw.node-factory.adapter ]
    wants = [ monitor.bluez.seat-monitoring ]
  }

Updating that file should solve the Problem.

Last edited by NFrost (Today 20:07:02)