I finally tested: https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/src/service.c?id=2e2edc36a91d6a8f2c65d793273df28a166d6bed
on xenial. But it did not improve the situation. ** Description changed: Bluetooth speaker fails to reconnect when turned on. Watching the Bluetooth icon in the Unity panel I can see it is trying (B icon briefly gets the expected padlock and then loses it). The speaker doesn't reconnect then unless initiated by the laptop (set Connection = ON in the panel). - - Sounds kind of like this (which is fixed in newer releases than xenial, but not in xenial): - https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/src/service.c?id=2e2edc36a91d6a8f2c65d793273df28a166d6bed Note this bug is only about the Bluetooth connection, and not about audio problems (of which there are a few). ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: bluez 5.37-0ubuntu5 ProcVersionSignature: Ubuntu 4.8.0-52.55~16.04.1-generic 4.8.17 Uname: Linux 4.8.0-52-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 Date: Mon May 22 16:28:37 2017 InstallationDate: Installed on 2017-05-19 (2 days ago) InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2) InterestingModules: rfcomm bnep btusb bluetooth MachineType: LENOVO 20CM0010AU ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.8.0-52-generic.efi.signed root=UUID=ae0f1ee2-ca1c-4a64-985f-b27f9a8c0e50 ro quiet splash vt.handoff=7 SourcePackage: bluez UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/05/2016 dmi.bios.vendor: LENOVO dmi.bios.version: N10ET45W (1.24 ) dmi.board.asset.tag: Not Available dmi.board.name: 20CM0010AU dmi.board.vendor: LENOVO dmi.board.version: SDK0E50510 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN10ET45W(1.24):bd09/05/2016:svnLENOVO:pn20CM0010AU:pvrThinkPadX250:rvnLENOVO:rn20CM0010AU:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20CM0010AU dmi.product.version: ThinkPad X250 dmi.sys.vendor: LENOVO hciconfig: hci0: Type: BR/EDR Bus: USB BD Address: 34:02:86:EE:0F:47 ACL MTU: 1021:5 SCO MTU: 96:6 UP RUNNING RX bytes:1298997 acl:147 sco:25046 events:1846 errors:0 TX bytes:1750802 acl:1411 sco:18166 commands:299 errors:0 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to bluez in Ubuntu. https://bugs.launchpad.net/bugs/1692448 Title: Bluetooth speaker fails to reconnect when turned on (but it tries) Status in bluez package in Ubuntu: New Bug description: Bluetooth speaker fails to reconnect when turned on. Watching the Bluetooth icon in the Unity panel I can see it is trying (B icon briefly gets the expected padlock and then loses it). The speaker doesn't reconnect then unless initiated by the laptop (set Connection = ON in the panel). Note this bug is only about the Bluetooth connection, and not about audio problems (of which there are a few). ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: bluez 5.37-0ubuntu5 ProcVersionSignature: Ubuntu 4.8.0-52.55~16.04.1-generic 4.8.17 Uname: Linux 4.8.0-52-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 Date: Mon May 22 16:28:37 2017 InstallationDate: Installed on 2017-05-19 (2 days ago) InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2) InterestingModules: rfcomm bnep btusb bluetooth MachineType: LENOVO 20CM0010AU ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.8.0-52-generic.efi.signed root=UUID=ae0f1ee2-ca1c-4a64-985f-b27f9a8c0e50 ro quiet splash vt.handoff=7 SourcePackage: bluez UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/05/2016 dmi.bios.vendor: LENOVO dmi.bios.version: N10ET45W (1.24 ) dmi.board.asset.tag: Not Available dmi.board.name: 20CM0010AU dmi.board.vendor: LENOVO dmi.board.version: SDK0E50510 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN10ET45W(1.24):bd09/05/2016:svnLENOVO:pn20CM0010AU:pvrThinkPadX250:rvnLENOVO:rn20CM0010AU:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20CM0010AU dmi.product.version: ThinkPad X250 dmi.sys.vendor: LENOVO hciconfig: hci0: Type: BR/EDR Bus: USB BD Address: 34:02:86:EE:0F:47 ACL MTU: 1021:5 SCO MTU: 96:6 UP RUNNING RX bytes:1298997 acl:147 sco:25046 events:1846 errors:0 TX bytes:1750802 acl:1411 sco:18166 commands:299 errors:0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1692448/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp