Installed kernel v4.4-rc2+cod1-wily, powered machine off, powered on, checked that the kernel is running, but no visible change, unfortunately. When turning on my wireless headphone, the little lock sign in the indicator applet repeatedly turns on briefly and disappears again. When this happens, no messages in syslog appear. I manage to set up the bluetooth connection by "Connection" setting the slider to "on" in the right moment after turning the headphone on, but this is a matter of luck. Below syslog messages while I do these things, and then finally turn my headphone off. There are a couple of error messages that might be of use.
Nov 26 08:28:07 pine pulseaudio[2507]: [pulseaudio] module-bluez5-device.c: Profile has no transport Nov 26 08:28:07 pine bluetoothd[1571]: /org/bluez/hci0/dev_FC_F1_52_4C_17_4E/fd0: fd(34) ready Nov 26 08:28:07 pine rtkit-daemon[1677]: Supervising 3 threads of 1 processes of 1 users. Nov 26 08:28:07 pine rtkit-daemon[1677]: Successfully made thread 3952 of process 2507 (n/a) owned by '1001' RT at priority 5. Nov 26 08:28:07 pine rtkit-daemon[1677]: Supervising 4 threads of 1 processes of 1 users. Nov 26 08:28:07 pine kernel: [ 71.070092] input: FC:F1:52:4C:17:4E as /devices/virtual/input/input13 Nov 26 08:28:09 pine gnome-session[2381]: sh: 1: exec: jockey-gtk: not found Nov 26 08:28:18 pine systemd[1]: Starting Stop ureadahead data collection... Nov 26 08:28:18 pine systemd[1]: Stopped Read required files in advance. Nov 26 08:28:18 pine systemd[1]: Started Stop ureadahead data collection. Nov 26 08:28:35 pine acpid: input device has been disconnected, fd 17 Nov 26 08:28:35 pine bluetoothd[1571]: Unable to get io data for Headset Voice gateway: getpeername: Transport endpoint is not connected (107) Nov 26 08:29:03 pine systemd[1]: Stopping User Manager for UID 104... Nov 26 08:29:03 pine systemd[1550]: Reached target Shutdown. Nov 26 08:29:03 pine systemd[1550]: Starting Exit the Session... Nov 26 08:29:03 pine systemd[1550]: Stopped target Default. Nov 26 08:29:03 pine systemd[1550]: Stopped target Basic System. Nov 26 08:29:03 pine systemd[1550]: Stopped target Sockets. Nov 26 08:29:03 pine systemd[1550]: Stopped target Paths. Nov 26 08:29:03 pine systemd[1550]: Stopped target Timers. Nov 26 08:29:03 pine systemd[1550]: Received SIGRTMIN+24 from PID 4020 (kill). Nov 26 08:29:03 pine systemd[1]: Stopped User Manager for UID 104. Nov 26 08:29:03 pine systemd[1]: Removed slice user-104.slice. Nov 26 08:29:14 pine pulseaudio[2507]: [pulseaudio] module-bluez5-device.c: Profile has no transport Nov 26 08:29:14 pine bluetoothd[1571]: /org/bluez/hci0/dev_FC_F1_52_4C_17_4E/fd1: fd(34) ready Nov 26 08:29:14 pine rtkit-daemon[1677]: Supervising 3 threads of 1 processes of 1 users. Nov 26 08:29:14 pine rtkit-daemon[1677]: Successfully made thread 4041 of process 2507 (n/a) owned by '1001' RT at priority 5. Nov 26 08:29:14 pine kernel: [ 138.066217] input: FC:F1:52:4C:17:4E as /devices/virtual/input/input14 Nov 26 08:29:14 pine rtkit-daemon[1677]: Supervising 4 threads of 1 processes of 1 users. Nov 26 08:29:27 pine gnome-session[2381]: ** (zeitgeist-datahub:3752): WARNING **: zeitgeist-datahub.vala:212: Error during inserting events: GDBus.Error:org.gnome.zeitgeist.EngineError.InvalidArgument: Incomplete event: interpretation, manifestation and actor are required Nov 26 08:30:31 pine acpid: input device has been disconnected, fd 17 Nov 26 08:30:31 pine bluetoothd[1571]: Unable to get io data for Headset Voice gateway: getpeername: Transport endpoint is not connected (107) -- 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/1519298 Title: btusb.ko preferred over ath3k.ko for Atheros AR3012 Bluetooth 4.0 Status in linux package in Ubuntu: Incomplete Bug description: Since upgrading from 14.10 to 15.04 and then 15.10, my Bluetooth is buggy (e.g., it does not automatically connect to my headphone, needs manual "turning on" in the indicator applet and some good luck to do this). My bluetooth device is # lsusb | grep Blue Bus 004 Device 014: ID 0cf3:3004 Atheros Communications, Inc. AR3012 Bluetooth 4.0 I think this device should be handled by ath3k.ko: # modinfo /lib/modules/$(uname -r)/kernel/drivers/bluetooth/ath3k.ko| grep 3004 alias: usb:v0CF3p3004d*dc*dsc*dp*ic*isc*ip*in* alias: usb:v04CAp3004d*dc*dsc*dp*ic*isc*ip*in* # uname -r 4.2.0-18-generic Indeed, ath3k.ko is loaded # lsmod | grep 'ath3k\|btusb' ath3k 20480 0 btusb 45056 0 btrtl 16384 1 btusb btbcm 16384 1 btusb btintel 16384 1 btusb bluetooth 516096 48 bnep,ath3k,btbcm,btrtl,btusb,rfcomm,btintel However, if I remove ath3k, bluetooth keeps streaming sound to my headphone: # modprobe -r ath3k [noting happens] while, if I remove the generic module # modprobe -r btusb the entire bluetooth architechture breaks down, my headphone goes silent, and sound now comes out of the built-in speakers. I'd hope that if ath3k was actually used, my bluetooth would be less buggy. What can I do? ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: linux-image-4.2.0-18-generic 4.2.0-18.22 ProcVersionSignature: Ubuntu 4.2.0-18.22-generic 4.2.3 Uname: Linux 4.2.0-18-generic x86_64 ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: axel 3114 F.... pulseaudio CurrentDesktop: Unity Date: Tue Nov 24 10:20:54 2015 DistributionChannelDescriptor: # This is a distribution channel descriptor # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-precise-amd64-20120703-2 HibernationDevice: RESUME=UUID=39fd7402-c630-4457-b2aa-6cfd16a1f97a InstallationDate: Installed on 2013-08-01 (844 days ago) InstallationMedia: Ubuntu 12.04 "Precise" - Build amd64 LIVE Binary 20120703-15:08 MachineType: Dell Inc. Dell System XPS L322X ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-18-generic root=UUID=ff211774-a9b8-42ab-896c-c542fb10c871 ro quiet splash pcie_aspm=force vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.2.0-18-generic N/A linux-backports-modules-4.2.0-18-generic N/A linux-firmware 1.149.2 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/18/2013 dmi.bios.vendor: Dell Inc. dmi.bios.version: A08 dmi.board.name: 0PJHXN dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnDellInc.:bvrA08:bd04/18/2013:svnDellInc.:pnDellSystemXPSL322X:pvr:rvnDellInc.:rn0PJHXN:rvrA00:cvnDellInc.:ct8:cvr0.1: dmi.product.name: Dell System XPS L322X dmi.sys.vendor: Dell Inc. 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