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[val-s <1470730@xxxxxxxxxxxxxxxxxx>]

Confirmed bug - HP EliteBook 9470m and 9480m. Works fine in WIndows.
US UltraSlim docking station (2013 model)

Although I can no longer test it, I believe this issue was also in
14.04.

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https://bugs.launchpad.net/bugs/1470730

Title:
  [HP EliteBook 840 G2, Realtek ALC3228, Black Headphone Out, Right]
  Headphone out on docking station doesn't work

Status in alsa-driver package in Ubuntu:
  New

Bug description:
  When I plug in external speakers to "headphone out" on the laptop the
  internal speakers are turned off but when I plug the speakers into the
  docking station (HP UltraSlim Dock 2013 EURO, D9Y32AA) music keeps
  playing in the internal speakers.

  ### Expected behaviour
  Plugging in external speakers to docking station should turn off sound from laptop internal speakers.

  ### Current behaviour
  Sound keeps playing in internal speakers when plugging in external speakers to docking station.

  ### Hardware
  Laptop: HP EliteBook 840 G2
  Product number: H9W19EA#AK8

  Docking station: HP UltraSlim Dock 2013 EURO
  Product number: D9Y32AA

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu4
  ProcVersionSignature: Ubuntu 3.19.0-21.21-generic 3.19.8
  Uname: Linux 3.19.0-21-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC2:  chol       2001 F.... pulseaudio
   /dev/snd/controlC0:  chol       2001 F.... pulseaudio
   /dev/snd/controlC1:  chol       2001 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Thu Jul  2 08:16:15 2015
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2015-06-05 (26 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  PackageArchitecture: all
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH successful
  Symptom_Card: Built-in Audio - HDA Intel PCH
  Symptom_Jack: Black Headphone Out, Right
  Symptom_PulsePlaybackTest: PulseAudio playback test successful
  Symptom_Type: Only some of outputs are working
  Title: [HP EliteBook 840 G2, Realtek ALC3228, Black Headphone Out, Right] Playback problem
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 02/24/2015
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: M71 Ver. 01.04
  dmi.board.name: 2216
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: KBC Version 96.54
  dmi.chassis.asset.tag: 5CG5093YZ7
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvrM71Ver.01.04:bd02/24/2015:svnHewlett-Packard:pnHPEliteBook840G2:pvrA3009D410303:rvnHewlett-Packard:rn2216:rvrKBCVersion96.54:cvnHewlett-Packard:ct10:cvr:
  dmi.product.name: HP EliteBook 840 G2
  dmi.product.version: A3009D410303
  dmi.sys.vendor: Hewlett-Packard

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