So, I switched back to the original package:
$ apt policy pulseaudio-module-bluetooth
pulseaudio-module-bluetooth:
Installed: 1:13.99.1-1ubuntu10
Candidate: 1:13.99.1-1ubuntu10
Version table:
*** 1:13.99.1-1ubuntu10 500
500 http://pl.archive.ubuntu.com/ubuntu groovy/main amd64 Packages
100 /var/lib/dpkg/status
Then I deleted the device from BlueZ:
$ bluetootctl
[bluetooth]# devices
...
Device 94:DB:56:52:BC:64 WH-1000XM4
[bluetooth]# remove 94:DB:56:52:BC:64
[DEL] Device 94:DB:56:52:BC:64 WH-1000XM4
Device has been removed
Afterwards I have removed user-wide PulseAudio configuration (actually
moved it to a different location):
mv ~/.config/pulse ~/.config/pulse.b4
And restarted the OS.
Then I had to pair the headphones anew. So I did that using
bluetoothctl:
[bluetooth]# scan on
Discovery started
[bluetooth]# devices
...
Device 94:DB:56:52:BC:64 WH-1000XM4
...
[bluetooth]# pair 94:DB:56:52:BC:64
Attempting to pair with 94:DB:56:52:BC:64
[CHG] Device 94:DB:56:52:BC:64 Connected: yes
[WH-1000XM4]#
And the problem was still there :( I re-did the steps above using the
Plasma applet, but same result.
Additional note: bluetoothctl by itself is not a workaround. The thing
that helps, is restarting bluetooth.service (sudo systemctl restart
bluetooth.service). I just used bluetoothctl to illustrate my actions, I
can also connect using Plasma applet (and it works exactly the same as
bluetoothctl: they both use DBus API for Bluez). I guess Gnome Control
Center also uses DBus to contact Bluez
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https://bugs.launchpad.net/bugs/1891648
Title:
[0cf3:e301 Qualcomm Atheros]Cannot switch to A2DP profile w/o
restarting bluetooth.service [pulseaudio: Refused to switch profile to
a2dp_sink: Not connected]
Status in linux package in Ubuntu:
Confirmed
Bug description:
When connecting to any Bluetooth device, PulseAudio fails to change
its profile to A2DP (and leaves it in HSP/HFP).
The following is appended to /var/log/syslog when trying to change
profile in pavucontrol:
Aug 14 14:59:02 k-laptop pulseaudio[18882]: Refused to switch profile
to a2dp_sink: Not connected
I'm currently using patched pulseaudio-modules-bt from here:
https://github.com/EHfive/pulseaudio-modules-bt. But the problem
persists with both packages.
The working workaround I found is:
sudo systemctl restart bluetooth.service
bluetoothctl
# list device MACs
devices
# use a MAC from the list above
connect <MAC>
After doing this, it is possible to switch to A2DP profile in
pavucontrol. But such restart is required each time device is
connected.
I'm using
Kubuntu 20.10 (development branch)
pulseaudio: 1:13.99.1-1ubuntu8
pulseaudio-modules-bluetooth: 1:13.99.1-1ubuntu8-9git+20200812~dfeee4f
but also reproducible with 1:13.99.1-1ubuntu8
ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: pulseaudio 1:13.99.1-1ubuntu8
ProcVersionSignature: Ubuntu 5.4.0-43.47-generic 5.4.55
Uname: Linux 5.4.0-43-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu44
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: kyrboh 19544 F.... pulseaudio
/dev/snd/pcmC0D0c: kyrboh 19544 F...m pulseaudio
/dev/snd/pcmC0D0p: kyrboh 19544 F...m pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: KDE
Date: Fri Aug 14 15:06:43 2020
InstallationDate: Installed on 2020-08-07 (6 days ago)
InstallationMedia: Kubuntu 20.04.1 LTS "Focal Fossa" - Release amd64
(20200731)
SourcePackage: pulseaudio
UpgradeStatus: Upgraded to groovy on 2020-08-10 (3 days ago)
dmi.bios.date: 05/22/2020
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.19.2
dmi.board.name: 05FFDN
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.19.2:bd05/22/2020:svnDellInc.:pnXPS159560:pvr:rvnDellInc.:rn05FFDN:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 15 9560
dmi.product.sku: 07BE
dmi.sys.vendor: Dell Inc.
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu44
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: kyrboh 1062 F.... pulseaudio
/dev/snd/pcmC0D0c: kyrboh 1062 F...m pulseaudio
/dev/snd/pcmC0D0p: kyrboh 1062 F...m pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: KDE
DistroRelease: Ubuntu 20.10
InstallationDate: Installed on 2020-08-07 (12 days ago)
InstallationMedia: Kubuntu 20.04.1 LTS "Focal Fossa" - Release amd64
(20200731)
MachineType: Dell Inc. XPS 15 9560
NonfreeKernelModules: nvidia_modeset nvidia
Package: linux (not installed)
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-43-generic
root=UUID=9aa54552-f644-480c-acac-bd2259bcc1df ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 5.4.0-43.47-generic 5.4.55
RelatedPackageVersions:
linux-restricted-modules-5.4.0-43-generic N/A
linux-backports-modules-5.4.0-43-generic N/A
linux-firmware 1.189
Tags: wayland-session groovy
Uname: Linux 5.4.0-43-generic x86_64
UpgradeStatus: Upgraded to groovy on 2020-08-10 (9 days ago)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 05/22/2020
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.19.2
dmi.board.name: 05FFDN
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.19.2:bd05/22/2020:svnDellInc.:pnXPS159560:pvr:rvnDellInc.:rn05FFDN:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 15 9560
dmi.product.sku: 07BE
dmi.sys.vendor: Dell Inc.
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu44
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: kyrboh 984 F.... pulseaudio
/dev/snd/pcmC0D0c: kyrboh 984 F...m pulseaudio
/dev/snd/pcmC0D0p: kyrboh 984 F...m pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: KDE
CurrentDmesg: Error: command ['dmesg'] failed with exit code 1: dmesg: read
kernel buffer failed: Operation not permitted
DistroRelease: Ubuntu 20.10
InstallationDate: Installed on 2020-08-07 (19 days ago)
InstallationMedia: Kubuntu 20.04.1 LTS "Focal Fossa" - Release amd64
(20200731)
MachineType: Dell Inc. XPS 15 9560
NonfreeKernelModules: nvidia_modeset nvidia
Package: linux (not installed)
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-16-generic
root=UUID=9aa54552-f644-480c-acac-bd2259bcc1df ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 5.8.0-16.17-generic 5.8.0
RelatedPackageVersions:
linux-restricted-modules-5.8.0-16-generic N/A
linux-backports-modules-5.8.0-16-generic N/A
linux-firmware 1.190
Tags: wayland-session groovy
Uname: Linux 5.8.0-16-generic x86_64
UpgradeStatus: Upgraded to groovy on 2020-08-10 (16 days ago)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 05/22/2020
dmi.bios.release: 1.19
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.19.2
dmi.board.name: 05FFDN
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.19.2:bd05/22/2020:br1.19:svnDellInc.:pnXPS159560:pvr:rvnDellInc.:rn05FFDN:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 15 9560
dmi.product.sku: 07BE
dmi.sys.vendor: Dell Inc.
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu44
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: kyrboh 980 F.... pulseaudio
/dev/snd/pcmC0D0c: kyrboh 980 F...m pulseaudio
/dev/snd/pcmC0D0p: kyrboh 980 F...m pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: KDE
CurrentDmesg: Error: command ['dmesg'] failed with exit code 1: dmesg: read
kernel buffer failed: Operation not permitted
DistroRelease: Ubuntu 20.10
InstallationDate: Installed on 2020-08-07 (19 days ago)
InstallationMedia: Kubuntu 20.04.1 LTS "Focal Fossa" - Release amd64
(20200731)
MachineType: Dell Inc. XPS 15 9560
NonfreeKernelModules: nvidia_modeset nvidia
Package: linux (not installed)
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-16-generic
root=UUID=9aa54552-f644-480c-acac-bd2259bcc1df ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 5.8.0-16.17-generic 5.8.0
RelatedPackageVersions:
linux-restricted-modules-5.8.0-16-generic N/A
linux-backports-modules-5.8.0-16-generic N/A
linux-firmware 1.190
Tags: wayland-session groovy
Uname: Linux 5.8.0-16-generic x86_64
UpgradeStatus: Upgraded to groovy on 2020-08-10 (16 days ago)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 05/22/2020
dmi.bios.release: 1.19
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.19.2
dmi.board.name: 05FFDN
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.19.2:bd05/22/2020:br1.19:svnDellInc.:pnXPS159560:pvr:rvnDellInc.:rn05FFDN:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 15 9560
dmi.product.sku: 07BE
dmi.sys.vendor: Dell Inc.
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