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[Bug 1331915] Re: [XPS 15 9530, Realtek ALC668, Mic, Internal] No autoswitch when headset is plugged in


kentb, thank you for the fix, this also works for me on an Asus N550JV.
This should be added in the kernel for 14.04 too

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  [XPS 15 9530, Realtek ALC668, Mic, Internal] No autoswitch when
  headset is plugged in

Status in “linux” package in Ubuntu:
  Fix Released

Bug description:
  When a headset is plugged in (four-position plug with an inline mic)
  on a typical laptop, the inline mic is switched to by default and when
  the headset is unplugged, the system reverts to the internal mic. In
  this case, there is never a switch to the inline mic. The system
  internal mic stays active at all times.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu4
  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
   /dev/snd/controlC1:  dpoler     2637 F.... pulseaudio
   /dev/snd/controlC0:  dpoler     2637 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Wed Jun 18 22:17:43 2014
  InstallationDate: Installed on 2014-05-29 (20 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  PackageArchitecture: all
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_Card: Built-in Audio - HDA Intel PCH
  Symptom_Jack: Mic, Internal
  Symptom_Type: No auto-switch between inputs
  Title: [XPS 15 9530, Realtek ALC668, Mic, Internal] No autoswitch
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/28/2014
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A04
  dmi.board.name: XPS 15 9530
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A04
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: Not Specified
  dmi.modalias: dmi:bvnDellInc.:bvrA04:bd03/28/2014:svnDellInc.:pnXPS159530:pvrA04:rvnDellInc.:rnXPS159530:rvrA04:cvnDellInc.:ct8:cvrNotSpecified:
  dmi.product.name: XPS 15 9530
  dmi.product.version: A04
  dmi.sys.vendor: Dell Inc.

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