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

Hi Daniel,
I've verified it with 12.04.3, 12.04.4, 14.04.1 and 14.10, this issue still exist.
This system was provided by OEM, I think it's an engineering sample.

** Changed in: alsa-driver (Ubuntu)
       Status: Incomplete => Triaged

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https://bugs.launchpad.net/bugs/1134069

Title:
  [HP Envy 4 Sleekbook] external audio jacks are reversed

Status in alsa-driver package in Ubuntu:
  Triaged

Bug description:
  Looking at the outside of the system, the external audio jacks  are in
  this order:

  Mic ___    Headphone ___

  However, on testing, it appears that they are either mislabled, or the
  outputs are reversed internally.  I had to plug the headphones into
  the Mic jack to hear sound, and plug the mic into the headphone jack
  to record sound.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.5.0-25-generic 3.5.0-25.39~precise1
  ProcVersionSignature: Ubuntu 3.5.0-25.39~precise1-generic 3.5.7.4
  Uname: Linux 3.5.0-25-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.25.
  ApportVersion: 2.0.1-0ubuntu17.1
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: STAC92xx Analog [STAC92xx Analog]
     Subdevices: 0/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ubuntu     1545 F.... pulseaudio
   /dev/snd/pcmC0D0c:   ubuntu     1545 F...m pulseaudio
  CRDA:
   country TW:
   	(2402 - 2472 @ 40), (3, 27)
   	(5270 - 5330 @ 40), (3, 17), DFS
   	(5735 - 5815 @ 40), (3, 30)
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0x50710000 irq 48'
     Mixer name	: 'Intel PantherPoint HDMI'
     Components	: 'HDA:111d76e0,103c1894,00100102 HDA:80862806,80860101,00100000'
     Controls      : 24
     Simple ctrls  : 11
  Date: Wed Feb 27 03:05:29 2013
  HibernationDevice: RESUME=UUID=286b25cc-7928-4406-854e-6c1cae69a6e6
  InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release amd64 (20130213)
  MachineType: Hewlett-Packard HP Pavilion dm4 Notebook PC
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-25-generic root=UUID=0c6af5a9-e287-43f5-8ce6-647a4ae228f2 ro quiet splash initcall_debug vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.5.0-25-generic N/A
   linux-backports-modules-3.5.0-25-generic  N/A
   linux-firmware                            1.79.1
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/31/2012
  dmi.bios.vendor: Insyde
  dmi.bios.version: B.38
  dmi.board.asset.tag: Type2 - Board Asset Tag
  dmi.board.name: 1894
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: 72.66
  dmi.chassis.asset.tag: Chassis Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnInsyde:bvrB.38:bd10/31/2012:svnHewlett-Packard:pnHPPaviliondm4NotebookPC:pvr0888100000250E10000020000:rvnHewlett-Packard:rn1894:rvr72.66:cvnHewlett-Packard:ct10:cvrChassisVersion:
  dmi.product.name: HP Pavilion dm4 Notebook PC
  dmi.product.version: 0888100000250E10000020000
  dmi.sys.vendor: Hewlett-Packard

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