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[Bug 1406014] Re: Bluetooth: can't load firmware, may not work correctly

 

uellue, ok, so this indicates that this isn't a linux (Ubuntu) kernel
regression, but in some other package. Next, could you please return
back to the default kernel, install the firmware from Precise (1.79.18,
or whichever earlier version from that you know worked), and advise if
the bluetooth begins to work?

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https://bugs.launchpad.net/bugs/1406014

Title:
  Bluetooth: can't load firmware, may not work correctly

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Bluetooth does not work. The tray icon appears, but none of the functionality is available. Probable cause:
  The firmware for Bus 001 Device 003: ID 0a5c:21e6 Broadcom Corp. BCM20702 Bluetooth 4.0 [ThinkPad] does not load. The message in dmesg is "Bluetooth: can't load firmware, may not work correctly". The problem appeared after upgrading from the previous LTS version (12.04?).

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-44-generic 3.13.0-44.73
  ProcVersionSignature: Ubuntu 3.13.0-44.73-generic 3.13.11-ckt12
  Uname: Linux 3.13.0-44-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.6
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  weber      2408 F.... pulseaudio
                        weber      2744 F.... pulseaudio
  CurrentDesktop: KDE
  Date: Sat Dec 27 22:58:37 2014
  HibernationDevice: RESUME=UUID=4dd72213-9a42-4532-aa22-2ccc72d46062
  InstallationDate: Installed on 2012-07-21 (889 days ago)
  InstallationMedia: Kubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120423)
  MachineType: LENOVO 2320CTO
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-44-generic root=UUID=a58cd4c1-52b5-4b88-b5a8-3bf530c20c4a ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-44-generic N/A
   linux-backports-modules-3.13.0-44-generic  N/A
   linux-firmware                             1.127.11
  SourcePackage: linux
  UpgradeStatus: Upgraded to trusty on 2014-12-26 (1 days ago)
  dmi.bios.date: 05/24/2012
  dmi.bios.vendor: LENOVO
  dmi.bios.version: G2ET31WW (1.11 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 2320CTO
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrG2ET31WW(1.11):bd05/24/2012:svnLENOVO:pn2320CTO:pvrThinkPadX230:rvnLENOVO:rn2320CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 2320CTO
  dmi.product.version: ThinkPad X230
  dmi.sys.vendor: LENOVO

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References