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[Raymond <1315911@xxxxxxxxxxxxxxxxxx>]

seem need to change pin default from 0x03a11040 to 0x03a114c



https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda/patch_realtek.c?id=73bdd597823e2231dc882577dbbaf8df92fe1775

+	[ALC668_FIXUP_DELL_MIC_NO_PRESENCE] = {
+		.type = HDA_FIXUP_PINS,
+		.v.pins = (const struct hda_pintbl[]) {
+			{ 0x19, 0x03a1913d }, /* use as headphone mic, without its own jack detect */
+			{ 0x1b, 0x03a1113c }, /* use as headset mic, without its own jack detect */
+			{ }
+		},
+		.chained = true,
+		.chain_id = ALC668_FIXUP_HEADSET_MODE
+	},


Node 0x1b [Pin Complex] wcaps 0x40048b: Stereo Amp-In
   Control: name="Mic Boost Volume", index=0, device=0
     ControlAmp: chs=3, dir=In, idx=0, ofs=0
   Control: name="Mic Jack", index=0, device=0
   Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x27, mute=0
   Amp-In vals: [0x03 0x03]
   Pincap 0x00003724: IN Detect
     Vref caps: HIZ 50 GRD 80 100
   Pin Default 0x03a11040: [Jack] Mic at Ext Left
     Conn = 1/8, Color = Black
     DefAssociation = 0x4, Sequence = 0x0
   Pin-ctls: 0x24: IN VREF_80
   Unsolicited: tag=02, enabled=1
   Power states: D0 D1 D2 D3 EPSS
   Power: setting=D0, actual=D0

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https://bugs.launchpad.net/bugs/1315911

Title:
  [N550JV, Realtek ALC668, Black Mic, Left] No autoswitch

Status in “alsa-driver” package in Ubuntu:
  Incomplete

Bug description:
  When I plug in the smartphone headset microphone and sound stop
  working. If I go to Pulseaudio Volume Control and I select Internal
  Microphone for input and Speakers for output the hedset works fine. If
  I remove the headset, the speakers and the microphone stop working
  again. I have to manually reset them again to make them working. This
  is really anoying, especially in Skype or Viber.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu4
  ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  adrian    11017 F.... pulseaudio
   /dev/snd/controlC0:  adrian    11017 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sun May  4 19:55:50 2014
  InstallationDate: Installed on 2014-04-12 (22 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Beta amd64 (20140326)
  PackageArchitecture: all
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_Card: Built-in Audio - HDA Intel PCH
  Symptom_Jack: Black Mic, Left
  Symptom_Type: No auto-switch between inputs
  Title: [N550JV, Realtek ALC668, Black Mic, Left] No autoswitch
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/17/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: N550JV.207
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: N550JV
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrN550JV.207:bd09/17/2013:svnASUSTeKCOMPUTERINC.:pnN550JV:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnN550JV:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: N550JV
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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