I guess you used the modified packages when you paired with this headphone the 1st time, and it only supported HSP/HFP Transport at that time. And this configuration is remembered.
After you use the correct packages, it will not change since the configuration is already remembered/saved. You could run bluetoothctl devices and connect, this will make a new connection, and it has both A2DP and HSP/HFP Transports, but these two commands will not replace the saved/remembered configuration, so after disconnect and reconnect, it has only HSP/HFP Transport, you need to run bluetoothctl again. Maybe you could remove and pair the headphone to let configuration have A2DP, then you don't need to run bluetoothctl time and time. I tested on stock ubuntu, it is gnome desktop. If I paired the device with gnome-control-center bluetooth applet, it will save the configuration, and if I ran bluetoothctl devices and connect, it will not save the configuration. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. 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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