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[Launchpad Bug Tracker <1421212@xxxxxxxxxxxxxxxxxx>]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

** Changed in: linux (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1421212

Title:
  Bluetooth working randomly

Status in linux package in Ubuntu:
  Expired

Bug description:
  Bluetooth is working randomly, at boot sometimes gives

   Bluetooth: hci0 sending frame failed

  
  Ubuntu 14.04 LTS, update

  uname -a
  $ Lenovo-B575e 3.13.0-45-generic #74-Ubuntu SMP Tue Jan 13 19:36:28 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

  lspci | grep Wireless
  $ Network controller: Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter (rev 01)

  dmesg log

  diff boot_notworking.log bootworking.log| grep luetooth

  < [   17.946819] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is unblocked
  < [   18.890810] Bluetooth: Core ver 2.17
  < [   18.890860] Bluetooth: HCI device and connection manager initialized
  < [   18.890878] Bluetooth: HCI socket layer initialized
  < [   18.890884] Bluetooth: L2CAP socket layer initialized
  < [   18.890894] Bluetooth: SCO socket layer initialized
  < [   20.002871] Bluetooth: can't load firmware, may not work correctly
  < [   20.006422] Bluetooth: hci0 sending frame failed
  < [   21.030518] Bluetooth: RFCOMM TTY layer initialized
  < [   21.030549] Bluetooth: RFCOMM socket layer initialized
  < [   21.030574] Bluetooth: RFCOMM ver 1.11
  < [   21.121526] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
  < [   21.121537] Bluetooth: BNEP filters: protocol multicast
  < [   21.121558] Bluetooth: BNEP socket layer initialized

  > [   12.956963] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is unblocked
  > [   13.348060] Bluetooth: Core ver 2.17
  > [   13.348118] Bluetooth: HCI device and connection manager initialized
  > [   13.348136] Bluetooth: HCI socket layer initialized
  > [   13.348142] Bluetooth: L2CAP socket layer initialized
  > [   13.348152] Bluetooth: SCO socket layer initialized
  > [   14.270573] Bluetooth: can't load firmware, may not work correctly
  > [   21.295073] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
  > [   21.295083] Bluetooth: BNEP filters: protocol multicast
  > [   21.295104] Bluetooth: BNEP socket layer initialized
  > [   21.319534] Bluetooth: RFCOMM TTY layer initialized
  > [   21.319565] Bluetooth: RFCOMM socket layer initialized
  > [   21.319590] Bluetooth: RFCOMM ver 1.11

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-45-generic 3.13.0-45.74
  ProcVersionSignature: Ubuntu 3.13.0-45.74-generic 3.13.11-ckt13
  Uname: Linux 3.13.0-45-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.14.1-0ubuntu3.6
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  walter     1975 F.... pulseaudio
   /dev/snd/controlC0:  walter     1975 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Thu Feb 12 14:35:42 2015
  HibernationDevice: RESUME=UUID=d07e5522-cadf-4724-8aa4-b4411094fbaa
  InstallationDate: Installed on 2014-08-01 (195 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: LENOVO 36852BG
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-45-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-45-generic N/A
   linux-backports-modules-3.13.0-45-generic  N/A
   linux-firmware                             1.127.11
  SourcePackage: linux
  StagingDrivers: rts5139
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/26/2012
  dmi.bios.vendor: LENOVO
  dmi.bios.version: HPET68WW(1.06)
  dmi.board.asset.tag: Not Available
  dmi.board.name: 36852BG
  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:bvrHPET68WW(1.06):bd12/26/2012:svnLENOVO:pn36852BG:pvrLenovoB575e:rvnLENOVO:rn36852BG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 36852BG
  dmi.product.version: Lenovo B575e
  dmi.sys.vendor: LENOVO

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