That's not /really/ helpful anyway. You'd have installed an extra application, for a wholly unrelated issue, and still have to set the profile to A2DP yourself.
Alistair, there are messages in your logs that seem to point to a firmware issue: Nov 26 16:56:25 albatross bluetoothd[1010]: Unable to get io data for Headset Voice gateway: getpeername: Transport endpoint is not connected (107) Furthermore, I see some slightly unusual messages that point to an issue with the firmware (usually) as well: Nov 26 14:45:14 albatross kernel: Bluetooth: hci0: SCO packet for unknown connection handle 0 Nov 26 14:45:14 albatross kernel: Bluetooth: hci0: SCO packet for unknown connection handle 0 Nov 26 14:45:14 albatross kernel: Bluetooth: hci0: SCO packet for unknown connection handle 0 Nov 26 14:45:14 albatross kernel: Bluetooth: hci0: SCO packet for unknown connection handle 0 Nov 26 14:45:14 albatross kernel: Bluetooth: hci0: SCO packet for unknown connection handle 257 Nov 26 14:45:14 albatross kernel: Bluetooth: hci0: SCO packet for unknown connection handle 257 It's possible the hardware gets confused by losing the connection that was initially there. I realize this might not be /so/ helpful, but have you also tried with another model of bluetooth headphones, assuming you have something available? Please see if you can attach the full contents of /var/log/syslog after reproducing the issue (with a different model or with the usual Sonys); once you've made sure that it doesn't contain sensitive data. I'd need to know when you started each attempt so we can see exactly how the system reacts to it. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to bluez in Ubuntu. https://bugs.launchpad.net/bugs/1854392 Title: Bluetooth headphones won't use A2DP on reconnect Status in bluez package in Ubuntu: Confirmed Bug description: *** This bug is the same as bug 1724919, but is NOT A DUPLICATE because that bug was closed because it was reported for Ubuntu 17.10, which is out of support. This bug is for newer versions, such as 19.10. PLEASE DO NOT MARK THIS BUG AS A DUPLICATE. *** On Ubuntu 19.10 on my Thinkpad T470s, my Sony WH-1000XM3 headphones pair using Bluetooth with no problems, and use A2DP by default. If I then power off the headphones and power them back on, they reconnect but use HSP/HFP and sound terrible. If I manually go into the sound settings, A2DP is offered as an option, but selecting it doesn't take effect. The headphones remain stuck in HSP/HFP mode. Unpairing the headphones and re-pairing them again selects A2DP by default, until the next time I switch the headphones off. Then they're back to stuck in HSP/HFP until I unpair them once again. I therefore need to unpair and re-pair them every time I want to use them, which is a nuisance. ProblemType: Bug DistroRelease: Ubuntu 19.10 Package: bluez 5.50-0ubuntu4 ProcVersionSignature: Ubuntu 5.3.0-19.20-generic 5.3.1 Uname: Linux 5.3.0-19-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu8.2 Architecture: amd64 CurrentDesktop: Unity:Unity7:ubuntu Date: Thu Nov 28 13:28:52 2019 InstallationDate: Installed on 2017-08-16 (833 days ago) InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) InterestingModules: rfcomm bnep btusb bluetooth Lsusb: Bus 002 Device 002: ID 0bda:0316 Realtek Semiconductor Corp. USB3.0-CRW Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 5986:111c Acer, Inc Integrated Camera Bus 001 Device 002: ID 8087:0a2b Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: LENOVO 20HFCTO1WW ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-19-generic root=UUID=c023de63-612b-4367-874e-b3c987874f56 ro quiet splash vt.handoff=7 SourcePackage: bluez UpgradeStatus: Upgraded to eoan on 2019-10-04 (55 days ago) dmi.bios.date: 08/30/2019 dmi.bios.vendor: LENOVO dmi.bios.version: N1WET56W (1.35 ) dmi.board.asset.tag: Not Available dmi.board.name: 20HFCTO1WW dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN1WET56W(1.35):bd08/30/2019:svnLENOVO:pn20HFCTO1WW:pvrThinkPadT470s:rvnLENOVO:rn20HFCTO1WW:rvrNotDefined:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad T470s dmi.product.name: 20HFCTO1WW dmi.product.sku: LENOVO_MT_20HF_BU_Think_FM_ThinkPad T470s dmi.product.version: ThinkPad T470s dmi.sys.vendor: LENOVO hciconfig: hci0: Type: Primary Bus: USB BD Address: F8:59:71:8D:1A:16 ACL MTU: 1021:4 SCO MTU: 96:6 UP RUNNING PSCAN ISCAN RX bytes:3713310 acl:385 sco:2759 events:508913 errors:0 TX bytes:432771109 acl:506248 sco:2734 commands:2514 errors:0 mtime.conffile..etc.bluetooth.main.conf: 2019-10-27T09:41:27.085337 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1854392/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
