Repeating information from the original bug: The bugzilla bug (https://bugzilla.kernel.org/show_bug.cgi?id=60824) says that it's working since 3.14.1
This is the commit where it's fixed: https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/include/net/bluetooth/hci.h?id=f9f462faa02777f497eb25255683a94e0c054de6 It was applied on 2014-01-04 for the 3.14 kernel. Getting this patch backported to 3.13 will likely fix it for Trusty. There's no need to bisect anything. Not splitting the information into separate bugs would have saved everybody some time. ** Bug watch added: Linux Kernel Bug Tracker #60824 http://bugzilla.kernel.org/show_bug.cgi?id=60824 -- 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/1314621 Title: 0a12:0001 [Lenovo G580] Bluetooth Dongle (Cambridge Silicon Radio, Ltd) doesnt work on ubuntu 14.04 Status in “linux” package in Ubuntu: Incomplete Bug description: Bluetooth Dongle (Cambridge Silicon Radio, Ltd) doesnt work on ubuntu 14.04 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-24-generic 3.13.0-24.46 [modified: boot/vmlinuz-3.13.0-24-generic] ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: sperruolo 1976 F.... pulseaudio CurrentDesktop: Unity Date: Wed Apr 30 09:42:34 2014 HibernationDevice: RESUME=UUID=7baca90b-9427-4acc-b9b4-cb02bf839380 InstallationDate: Installed on 2014-04-25 (4 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: LENOVO 20157 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic root=UUID=d3f21774-ccf3-4a73-bce6-f1b73a6d73de ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.127 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/16/2012 dmi.bios.vendor: LENOVO dmi.bios.version: 62CN89WW dmi.board.asset.tag: No Asset Tag dmi.board.name: Lenovo G580 dmi.board.vendor: LENOVO dmi.board.version: 31900003WIN8 STD MLT dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo G580 dmi.modalias: dmi:bvnLENOVO:bvr62CN89WW:bd08/16/2012:svnLENOVO:pn20157:pvrLenovoG580:rvnLENOVO:rnLenovoG580:rvr31900003WIN8STDMLT:cvnLENOVO:ct10:cvrLenovoG580: dmi.product.name: 20157 dmi.product.version: Lenovo G580 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1314621/+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