Can you test some of the 3.15 release candidates[0] from rc1 up to rc8 to identify the exact rc where the regression was introduced? Once we know the last good and first bad kernels, we can bisect to find the commit that introduced the regression.
[0] kernel.ubuntu.com/~kernel-ppa/mainline/ ** Changed in: linux (Ubuntu) Importance: Undecided => Medium -- 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/1325902 Title: Bluetooth error on booting Status in “linux” package in Ubuntu: Confirmed Bug description: I'm using Ubuntu 14.10 dev with linux-image-generic 3.15.0.5.6 and on every boot I'm seeing this error: [ 29.464778] Bluetooth: Can't get version to change to load ram patch err [ 29.465513] Bluetooth: Loading patch file failed --- AlsaVersion: Advanced Linux Sound Architecture Driver Version k3.15.0-5-generic. ApportVersion: 2.14.3-0ubuntu1 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 1: SB [HDA ATI SB], device 0: ALC270 Analog [ALC270 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D0c', '/dev/snd/pcmC1D0p', '/dev/snd/controlC1', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D3p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: BootDmesg: (Nothing has been logged yet.) CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'Generic'/'HD-Audio Generic at 0xf0444000 irq 43' Mixer name : 'ATI R6xx HDMI' Components : 'HDA:1002aa01,00aa0100,00100200' Controls : 7 Simple ctrls : 1 Card0.Amixer.values: Simple mixer control 'IEC958',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] Card1.Amixer.info: Card hw:1 'SB'/'HDA ATI SB at 0xf0440000 irq 16' Mixer name : 'Realtek ALC270' Components : 'HDA:10ec0270,103c3577,00100100' Controls : 21 Simple ctrls : 9 DistroRelease: Ubuntu 14.10 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=7847eff0-e554-43ac-8b9e-6e22a0666046 Lsusb: Error: [Errno 2] No such file or directory MachineType: Hewlett-Packard HP 635 Notebook PC NonfreeKernelModules: fglrx Package: linux (not installed) ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=de_DE.UTF-8 SHELL=/bin/bash ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.15.0-5-generic root=UUID=af27feae-4c9e-4b5f-a1e1-900c0e71c5cb ro elevator=cfq ProcVersionSignature: Ubuntu 3.15.0-5.10-generic 3.15.0-rc8 RelatedPackageVersions: linux-restricted-modules-3.15.0-5-generic N/A linux-backports-modules-3.15.0-5-generic N/A linux-firmware 1.130 RfKill: Error: [Errno 2] No such file or directory Tags: utopic Uname: Linux 3.15.0-5-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: WifiSyslog: _MarkForUpload: True dmi.bios.date: 12/18/2011 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: F.48 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 3577 dmi.board.vendor: Hewlett-Packard dmi.board.version: 24.4A dmi.chassis.asset.tag: Chassis Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnHewlett-Packard:bvrF.48:bd12/18/2011:svnHewlett-Packard:pnHP635NotebookPC:pvr058A100000004C10002600000:rvnHewlett-Packard:rn3577:rvr24.4A:cvnHewlett-Packard:ct10:cvrChassisVersion: dmi.product.name: HP 635 Notebook PC dmi.product.version: 058A100000004C10002600000 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1325902/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp

