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[Bug 1254138] Re: [Dell Precision M4300] Bluetooth LED permanently on

 

** Bug watch added: Linux Kernel Bug Tracker #65731
   http://bugzilla.kernel.org/show_bug.cgi?id=65731

** Also affects: linux via
   http://bugzilla.kernel.org/show_bug.cgi?id=65731
   Importance: Unknown
       Status: Unknown

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https://bugs.launchpad.net/bugs/1254138

Title:
  [Dell Precision M4300] Bluetooth LED permanently on

Status in The Linux Kernel:
  Unknown
Status in “linux” package in Ubuntu:
  Triaged

Bug description:
  When switching off bluetooth the LED used to also turn off, I re-
  tested quickly with Natty to confirm this, but for at least the last
  two releases the LED is stubbornly staying on all the time.

  I have identified the commit specific to Dell laptops that broke this
  and quite coincidentally this same commit was just reverted on the
  next branch only a few days ago. It's not all good however as the
  companion commits replace a laptop blacklist with a whitelist meaning
  it currently only works with Latitude models so I have to see if I can
  get Precision models also included.

  The commit that resulted in this issue was introduced in 3.5 kernel as
  "dell-laptop: Remove rfkill code"[1]

  I have built and tested the linux next branch code with the revert
  commit [2] and then modify the "Latitude" product string commit [3] to
  "Precision" and the bluetooth LED is now switching off as it should
  do.

  [1] https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?id=a6c2390cd6d2083d27a2359658e08f2d3df375ac
  [2 ]https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/?id=4cc8a57425c623753b10b77b15392e5b83baa5a3
  [3] https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/?id=2a92551845bbbc8421ba908cd14bbdf065e0f454

  
  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-3.11.0-14-generic 3.11.0-14.21
  ProcVersionSignature: Ubuntu 3.11.0-14.21-generic 3.11.7
  Uname: Linux 3.11.0-14-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.12.5-0ubuntu2.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  calum      1528 F.... pulseaudio
  CheckboxSubmission: beb20350994a383f56f97def0e07bae1
  CheckboxSystem: d00f84de8a555815fa1c4660280da308
  Date: Fri Nov 22 19:08:54 2013
  HibernationDevice: RESUME=UUID=3f279429-3482-4734-86b6-cc41fa7ce020
  InstallationDate: Installed on 2012-02-23 (637 days ago)
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120223.1)
  MachineType: Dell Inc. Precision M4300
  MarkForUpload: True
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcFB:

  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-14-generic root=UUID=64e61881-95ee-4b3c-8714-c08c940f4966 ro quiet splash
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-14-generic N/A
   linux-backports-modules-3.11.0-14-generic  N/A
   linux-firmware                             1.116
  SourcePackage: linux
  UpgradeStatus: Upgraded to saucy on 2013-09-06 (77 days ago)
  dmi.bios.date: 06/19/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A17
  dmi.board.name: 0UY141
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA17:bd06/19/2013:svnDellInc.:pnPrecisionM4300:pvr:rvnDellInc.:rn0UY141:rvr:cvnDellInc.:ct8:cvr:
  dmi.product.name: Precision M4300
  dmi.sys.vendor: Dell Inc.

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