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[Po-Hsu Lin <po-hsu.lin@xxxxxxxxxxxxx>]

Also affects 201312-14380 Dell Latitude 3340

** Tags added: 201312-14380

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https://bugs.launchpad.net/bugs/1326684

Title:
  [Dell Latitude 3340] Microphone mute key does not work

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  CID: 201312-14381 Dell Latitude 3340

  The Microphone mute on this system is not working

  Steps:
  1. Install 14.04 + update (3.13.0-27 #50)
  2. Speak to the mic and record it, test the mic mute key to see if it works (fn+f4)

  Expected results:
  * Mic mute key should work, and the "Mute" option for input device should be ticked after you press the mic mute key

  Actual result:
  * Nothing happened

  Debugging information:
  From sudo showkey -k, keycode 248 press and release would be detected, when you press the mic mute combination key.
  From xev, this event cannot be detected.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-27-generic 3.13.0-27.50
  ProcVersionSignature: Ubuntu 3.13.0-27.50-generic 3.13.11
  Uname: Linux 3.13.0-27-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  ubuntu     1552 F.... pulseaudio
   /dev/snd/pcmC1D0c:   ubuntu     1552 F...m pulseaudio
   /dev/snd/controlC0:  ubuntu     1552 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Thu Jun  5 03:52:08 2014
  HibernationDevice: RESUME=UUID=3a9169b0-e941-485e-9aac-c369d2a231a3
  InstallationDate: Installed on 2014-06-05 (0 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  MachineType: Dell Inc. Latitude 3340
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-27-generic.efi.signed root=UUID=cbf67c96-d451-43fe-9d3b-27a3d278397e ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-27-generic N/A
   linux-backports-modules-3.13.0-27-generic  N/A
   linux-firmware                             1.127.2
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/24/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A00
  dmi.board.name: 4OA010
  dmi.board.vendor: Dell Inc.
  dmi.board.version: D01
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA00:bd12/24/2013:svnDellInc.:pnLatitude3340:pvr01:rvnDellInc.:rn4OA010:rvrD01:cvnDellInc.:ct9:cvr:
  dmi.product.name: Latitude 3340
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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