Bluetooth fails to connect "br-connection-profile-unavailable"

[EdwardO]

How to reproduce:

> bluetoothctl scan on
Discovery started
...
> bluetoothctl connect 94:DB:56:8E:0B:96
Attempting to connect to 94:DB:56:8E:0B:96
Failed to connect: org.bluez.Error.Failed br-connection-profile-unavailable

> systemctl status bluetooth
bluetooth.service - Bluetooth service
     Loaded: loaded
...
mars 25 12:39:08 ncelrnd2375 bluetoothd[1282]: src/service.c:btd_service_connect() a2dp-sink profile connect failed for 94:DB:56:8E:0B:96: Protocol not available

Notes:
kernel-5.15, bluez-5.64
Bus 003 Device 004: ID 8087:0032 Intel Corp. AX210 Bluetooth
Dell Precision 3560
Unfortunately I did not test before upgrade to 22.04.
Tried installing pipewire-pulse, blueman, but this is lower-level.
There are reports of similar errors popping up in Arch and Manjaro recently:
https://bbs.archlinux.org/viewtopic.php?id=270465
https://forum.manjaro.org/t/bluetooth-ko-with-kernel-5-16/99913

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: bluez 5.64-0ubuntu1
ProcVersionSignature: Ubuntu 5.15.0-23.23-generic 5.15.27
Uname: Linux 5.15.0-23-generic x86_64
ApportVersion: 2.20.11-0ubuntu79
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Fri Mar 25 12:56:34 2022
InstallationDate: Installed on 2022-03-04 (21 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1)
InterestingModules: rfcomm bnep btusb bluetooth
MachineType: Dell Inc. Precision 3560
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.15.0-23-generic root=/dev/mapper/AmadeUbuntu20-root ro audit=1 acpi_rev_override load_nvme=YES nouveau.modeset=0 dis_ucode_ldr quiet splash vt.handoff=7
SourcePackage: bluez
UpgradeStatus: Upgraded to jammy on 2022-03-22 (3 days ago)
dmi.bios.date: 09/13/2021
dmi.bios.release: 1.12
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.12.2
dmi.board.name: 095HH7
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.12.2:bd09/13/2021:br1.12:svnDellInc.:pnPrecision3560:pvr:rvnDellInc.:rn095HH7:rvrA00:cvnDellInc.:ct10:cvr:sku0A22:
dmi.product.family: Precision
dmi.product.name: Precision 3560
dmi.product.sku: 0A22
dmi.sys.vendor: Dell Inc.
hciconfig:
 hci0: Type: Primary Bus: USB
  BD Address: 44:E5:17:BC:00:DD ACL MTU: 1021:4 SCO MTU: 96:6
  UP RUNNING PSCAN
  RX bytes:24189 acl:41 sco:0 events:519 errors:0
  TX bytes:8252 acl:33 sco:0 commands:239 errors:0
modified.conffile..etc.cron.daily.apport: [deleted]

[EdwardO (edwardooo)]

I found recent bugs but:
* this is not the same adapter as #1960448
* not same adapter as #1960377 and I'm running 5.15.0-23-generic which is supposed to have the fix mentioned.

[Daniel van Vugt (vanvugt)]

Profile selection is probably related to the sound server in use, so this should be assigned there too (pulseaudio or pipewire).

[Daniel van Vugt (vanvugt)]

What is the model of the audio device?

[EdwardO (edwardooo)]

Indeed audio is also broken since the update (no audio device is found), I didn't think bluetooth audio was related to the wired one, but if so this bug is misrouted.

lspci -nnk | grep -A2 Audio
0000:00:1f.3 Audio device [0403]: Intel Corporation Tiger Lake-LP Smart Sound Technology Audio Controller [8086:a0c8] (rev 20)
        Subsystem: Dell Tiger Lake-LP Smart Sound Technology Audio Controller [1028:0a22]
        Kernel driver in use: snd_hda_intel
        Kernel modules: snd_hda_intel, snd_sof_pci_intel_tgl

aplay --list-devices
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC3204 Analog [ALC3204 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
... up to HDMI 11

sudo dmesg | grep snd
[ 293.314241] snd_hda_intel 0000:00:1f.3: DSP detected with PCI class/subclass/prog-if info 0x040380
[ 293.314682] snd_hda_intel 0000:00:1f.3: enabling device (0000 -> 0002)
[ 293.314933] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops i915_audio_component_bind_ops [i915])
[ 293.480757] snd_hda_codec_realtek hdaudioC0D0: autoconfig for ALC3204: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:speaker
[ 293.480761] snd_hda_codec_realtek hdaudioC0D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[ 293.480762] snd_hda_codec_realtek hdaudioC0D0: hp_outs=1 (0x21/0x0/0x0/0x0/0x0)
[ 293.480764] snd_hda_codec_realtek hdaudioC0D0: mono: mono_out=0x0
[ 293.480769] snd_hda_codec_realtek hdaudioC0D0: inputs:
[ 293.480770] snd_hda_codec_realtek hdaudioC0D0: Headset Mic=0x19
[ 293.480772] snd_hda_codec_realtek hdaudioC0D0: Headphone Mic=0x1a
[ 293.480773] snd_hda_codec_realtek hdaudioC0D0: Internal Mic=0x12

journalctl -b --user -u pipewire -u pipewire-pulse -u pipewire-media-session
mars 28 16:33:39 ncelrnd2375 systemd[2780]: Started PipeWire Multimedia Service.
mars 28 16:33:39 ncelrnd2375 systemd[2780]: Started PipeWire Media Session Manager.
mars 28 16:33:39 ncelrnd2375 systemd[2780]: Started PipeWire PulseAudio.
mars 28 16:33:39 ncelrnd2375 pipewire-pulse[2803]: 536870912
mars 28 16:33:39 ncelrnd2375 pipewire-media-session[2789]: ms.core: error id:32 seq:229 res:-38 (Function not implemented): no interface PipeWire:Interface:Client

[Daniel van Vugt (vanvugt)]

What is the model of the Bluetooth device/headphones/speaker?

[Daniel van Vugt (vanvugt)]

Oh this is KDE too, so I wonder if that chooses PipeWire instead of PulseAudio. If so then please try a regular Ubuntu 22.04 live session (GNOME).

[EdwardO (edwardooo)]

Thanks for the support.

Indeed pipewire is part of the issue. Although installing kubuntu-desktop does not force pipewire (according to https://packages.ubuntu.com/jammy/kubuntu-desktop ), I may have enabled it wrongly while getting Wayland screensharing to work with the following:

sudo apt install xdg-desktop-portal-gnome gnome-remote-desktop # installs pipewire

systemctl --user enable pipewire-media-session
systemctl --user start pipewire-media-session
systemctl --user restart xdg-desktop-portal-gnome

This must have been what caused audio to break
(aside - I'd be happy to know the supported steps for xdg-portal sharing when upgrading to 22.04)

Thanks to your pointer I managed to fix it:
* recover the (wired) audio by installing wireplumber: this fixed half-setup pipewire situation.
* fix bluetooth by installing libspa-0.2-bluetooth (and restart bluetooth & wireplumber)
(see https://<email address hidden>/msg1826833.html)
So, closing this, and if it is considered an unsupported solution, sorry for taking your time!

[antgel (antgel)]

Thanks for this - I couldn't pair a simple Bluetooth speaker on 22.04 upgraded from 22.04. I didn't even know that pipewire was a thing nor that it crept in. Now it's working well, hopefully my JACK configuration will continue to work well as well...

[Aleksandr Panzin (jalexoid)]

Installing libspa-0.2-bluetooth helped me

As well sa manually pairing the Bluetooth headphones.