If you're using 16.04 then there have been no high-level bluetooth- related updates at all recently:
bluez 5.37-0ubuntu5 ... 2016-03-09 pulseaudio 1:8.0-0ubuntu3.3 ... 2017-06-30 So if your system was working for the previous month or more then the problem is not caused by bluez or pulseaudio at least. You might want to assign it to "linux (Ubuntu)" in case it was caused by a recent kernel update like: linux 4.4.0-91.114 ... 2017-08-07 which sounds more likely by the date. ** Changed in: bluez (Ubuntu) Status: New => Invalid -- 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/1710941 Title: Bluetooth stopped working after update Status in bluez package in Ubuntu: Invalid Bug description: Bluetooth connection to Bose Soundlink II have been fine for years. Applied a few new updates in the last day or two --- system was generally up to date, I don't often wait more than a week or so --- and now I can no longer connect. Removed the device and re-paired just fine, although the speaker did not connect as it usually does after the pairing (i.e., it stayed in pairing mode). Messages in syslog: Aug 15 20:32:07 n1 bluetoothd[1075]: connect error: Connection refused (111) Aug 15 20:32:07 n1 bluetoothd[1075]: GLib: Source ID 276 was not found when attempting to remove it Aug 15 20:32:11 n1 bluetoothd[1075]: connect error: Connection refused (111) Aug 15 20:32:42 n1 bluetoothd[1075]: connect error: Connection refused (111) Aug 15 20:32:42 n1 bluetoothd[1075]: GLib: Source ID 287 was not found when attempting to remove it Aug 15 20:32:46 n1 bluetoothd[1075]: connect error: Connection refused (111) Aug 15 20:33:07 n1 bluetoothd[1075]: connect error: Host is down (112) Aug 15 20:33:07 n1 bluetoothd[1075]: GLib: Source ID 305 was not found when attempting to remove it ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: bluez 5.37-0ubuntu5 ProcVersionSignature: Ubuntu 4.4.0-91.114-generic 4.4.76 Uname: Linux 4.4.0-91-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.10 Architecture: amd64 CurrentDesktop: Unity Date: Tue Aug 15 20:34:34 2017 InstallationDate: Installed on 2015-12-26 (597 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) InterestingModules: rfcomm bnep btusb bluetooth ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-91-generic root=UUID=5950fbba-cde1-49ac-a918-04e517894c57 ro quiet splash vt.handoff=7 SourcePackage: bluez UpgradeStatus: Upgraded to xenial on 2017-02-28 (168 days ago) dmi.bios.date: 01/18/2017 dmi.bios.vendor: Intel Corporation dmi.bios.version: RYBDWi35.86A.0362.2017.0118.0940 dmi.board.name: NUC5i5RYB dmi.board.vendor: Intel Corporation dmi.board.version: H40999-504 dmi.chassis.type: 3 dmi.modalias: dmi:bvnIntelCorporation:bvrRYBDWi35.86A.0362.2017.0118.0940:bd01/18/2017:svn:pn:pvr:rvnIntelCorporation:rnNUC5i5RYB:rvrH40999-504:cvn:ct3:cvr: hciconfig: hci0: Type: BR/EDR Bus: USB BD Address: DC:53:60:97:55:17 ACL MTU: 1021:5 SCO MTU: 96:6 UP RUNNING PSCAN RX bytes:6896 acl:46 sco:0 events:294 errors:0 TX bytes:4254 acl:32 sco:0 commands:156 errors:0 mtime.conffile..etc.bluetooth.main.conf: 2015-12-29T07:24:08.439240 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1710941/+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