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[Launchpad Bug Tracker <1469145@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/1469145

Title:
  Bluetooth device sometimes instantly turns off again after turning it
  on

Status in linux package in Ubuntu:
  Expired

Bug description:
  Sometimes when turning on bluetooth in the gnome bluetooth panel, it
  is shown as "On" for like a second and reverts back to "Off". This is
  what I see in dmesg:

  [1199362.625284] usb 1-1.4: Product: Broadcom Bluetooth Device
  [1199362.625286] usb 1-1.4: Manufacturer: Broadcom Corp
  [1199362.625287] usb 1-1.4: SerialNumber: EC55F9EFBB65
  [1199362.839031] usb 1-1.4: USB disconnect, device number 10
  [1199371.232776] usb 1-1.4: new full-speed USB device number 11 using ehci-pci
  [1199371.330552] usb 1-1.4: New USB device found, idVendor=0a5c, idProduct=217f
  [1199371.330556] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
  [1199371.330559] usb 1-1.4: Product: Broadcom Bluetooth Device
  [1199371.330560] usb 1-1.4: Manufacturer: Broadcom Corp
  [1199371.330562] usb 1-1.4: SerialNumber: EC55F9EFBB65
  [1199371.544424] usb 1-1.4: USB disconnect, device number 11

  This situation is usually triggered after waking up from suspend, and then permanent up to the next reboot.
  I would assume the USB disconnect is the problem. I don't have bluetooth disabled in the BIOS settings.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-generic 3.19.0.21.20
  ProcVersionSignature: Ubuntu 3.19.0-18.18-generic 3.19.6
  Uname: Linux 3.19.0-18-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/pcmC0D0p:   jonas      1889 F...m pulseaudio
   /dev/snd/controlC0:  jonas      1889 F.... pulseaudio
  CurrentDesktop: GNOME
  Date: Fri Jun 26 14:18:56 2015
  MachineType: LENOVO 429137G
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-18-generic root=UUID=ee26293f-6471-4bb2-abe2-a8faf67adf96 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-18-generic N/A
   linux-backports-modules-3.19.0-18-generic  N/A
   linux-firmware                             1.143.1
  SourcePackage: linux
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/01/2011
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8DET56WW (1.26 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 429137G
  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:bvr8DET56WW(1.26):bd12/01/2011:svnLENOVO:pn429137G:pvrThinkPadX220:rvnLENOVO:rn429137G:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 429137G
  dmi.product.version: ThinkPad X220
  dmi.sys.vendor: LENOVO

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