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[Hui Wang <hui.wang@xxxxxxxxxxxxx>]

commit 6676f3081f7e3dae64e05b87d47a041b782f898a
Author: Hui Wang <hui.wang@xxxxxxxxxxxxx>
Date:   Tue Nov 18 17:57:41 2014 +0800

    ALSA: hda - fix the mic mute led problem for Latitude E5550
    
    The microphone mute led on the Latitude E5550 can't work. We need to
    apply DELL_WMI_MIC_MUTE_LED quirk to this machine.
    
    The machine uses alc293 codec and already applied the quirk
    ALC293_FIXUP_DELL1_MIC_NO_PRESENCE through pin_fixup_tbl[].
    
    Here we just let DELL_WMI_MIC_MUTE_LED be chained to
    ALC269_FIXUP_HEADSET_MODE, then the machine will have these
    quirks ALC293_FIXUP_DELL1_MIC_NO_PRESENCE-->
    ALC269_FIXUP_HEADSET_MODE-->ALC255_FIXUP_DELL_WMI_MIC_MUTE_LED.
    
    BugLink: https://bugs.launchpad.net/bugs/1381856
    Reported-and-tested-by: Po-Hsu Lin <po-hsu.lin@xxxxxxxxxxxxx>
    Signed-off-by: Hui Wang <hui.wang@xxxxxxxxxxxxx>
    Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>

commit 4a83d42ae2041d5b76f1a0662bc3a5a85e4eb0d1
Author: Hui Wang <hui.wang@xxxxxxxxxxxxx>
Date:   Tue Nov 18 17:57:40 2014 +0800

    ALSA: hda - move DELL_WMI_MIC_MUTE_LED to the tail in the quirk chain
    
    We have one more Dell machine needs DELL_WMI_MIC_MUTE_LED quirk, but
    the machine uses alc293 instead of alc255. So if
    DELL_WMI_MIC_MUTE_LED still chain ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
    the machine can't use this quirk.
    
    To change this situation, let the DELL_WMI_MIC_MUTE_LED to be a
    standalone quirk, and let other quirks chain it.
    
    After this change, this quirk can be chained to any existing quirks,
    and as a result, it is possible that this quirk is applied to
    a non-Dell machine or a Dell machine without mic mute led on it, but
    it is still safe since alc_fixup_dell_wmi() will return an error in
    these situations.
    
    And remove the quirk for machine with subsystem id 0x6010 and 0x601f,
    these two machines will fall back to the quirk
    ALC255_FIXUP_DELL1_MIC_NO_PRESENCE-->ALC255_FIXUP_HEADSET_MODE-->
    ALC255_FIXUP_DELL_WMI_MIC_MUTE_LED through pin_fixup_tbl[].
    
    BugLink: https://bugs.launchpad.net/bugs/1381856
    Reported-and-tested-by: Po-Hsu Lin <po-hsu.lin@xxxxxxxxxxxxx>
    Signed-off-by: Hui Wang <hui.wang@xxxxxxxxxxxxx>
    Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>

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https://bugs.launchpad.net/bugs/1381856

Title:
  [Dell Latitude E5550] Microphone mute key does not work on this system

Status in HWE Next Project:
  Fix Released
Status in “linux” package in Ubuntu:
  Fix Released

Bug description:
  CID: 201406-15271 Dell Latitude E5550

  The microphone mute key does not work at all.

  Key event cannot be captured by "xev" or "sudo showkey -s"
  But keycode 248 would be returned when testing with sudo showkey -k

  Alsa info:
  http://www.alsa-project.org/db/?f=006099fcf08709c82a74dba986a907a602a868ab

  Also note that with file at /etc/udev/hwdb.d/60-dell-mic-mute-hotkey.hwdb generated with the following content:
  # Dell platform kernel driver 
  keyboard:name:Dell WMI hotkeys:dmi:bvn*:bvr*:bd*:svnDell*:pn*
   KEYBOARD_KEY_150=f20 # Mic mute toggle

  And with udev database updated: sudo udevadm hwdb -u

  The microphone mute key works, but the mic mute led does not work.
  (Also the icon is not correct, which show a speaker instead of a mic)

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-37-generic 3.13.0-37.64
  ProcVersionSignature: Ubuntu 3.13.0-37.64-generic 3.13.11.7
  Uname: Linux 3.13.0-37-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ubuntu     1530 F.... pulseaudio
   /dev/snd/controlC1:  ubuntu     1530 F.... pulseaudio
  CRDA:
   country TW:
   	(2402 - 2472 @ 40), (3, 27)
   	(5270 - 5330 @ 40), (3, 17), DFS
   	(5735 - 5815 @ 40), (3, 30)
  CurrentDesktop: Unity
  Date: Wed Oct 15 23:17:51 2014
  HibernationDevice: RESUME=UUID=02cbc1f1-a261-484c-8fc2-05b68f73446d
  InstallationDate: Installed on 2014-10-09 (6 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  MachineType: Dell Inc. Latitude E5550
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-37-generic root=UUID=d3b20ae5-9ff8-49b3-b640-1c6a9f264710 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-37-generic N/A
   linux-backports-modules-3.13.0-37-generic  N/A
   linux-firmware                             1.127.7
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/25/2014
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: T43
  dmi.board.name: 0141B2
  dmi.board.vendor: Dell Inc.
  dmi.board.version: X02
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrT43:bd07/25/2014:svnDellInc.:pnLatitudeE5550:pvr01:rvnDellInc.:rn0141B2:rvrX02:cvnDellInc.:ct9:cvr:
  dmi.product.name: Latitude E5550
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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