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[Keng-Yu Lin <keng-yu.lin@xxxxxxxxxxxxx>]

** Changed in: hwe-next
     Assignee: Keng-Yu Lin (lexical) => David Henningsson (diwic)

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https://bugs.launchpad.net/bugs/1441449

Title:
  [HP Z820] external microphone does not work, only records noises

Status in HWE Next Project:
  Incomplete
Status in alsa-driver package in Ubuntu:
  Confirmed

Bug description:
  Records with a lot noises, barely can heard the sound.

  Step to reproduce:

  1. plug your microphone to the front/rear micrphone jack
  2. turn up the microphone volume in the system > sound settings
  3. open a terminal then type command: arecord test.wav, ctrl-c to inturrupt when you finish

  Expected result:

  when playing the recordings it should plays recognizable sound.

  Actual results:

  A lot noise in the recordings.

  
  Additional information:
  In the attached recording file, you should hear, "Testing, One, Two, Three, Four, Five ".

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu4
  ProcVersionSignature: Ubuntu 3.13.0-49.81-generic 3.13.11-ckt17
  Uname: Linux 3.13.0-49-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.1-0ubuntu3.8
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  ubuntu     1696 F.... pulseaudio
   /dev/snd/controlC0:  ubuntu     1696 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Wed Apr  8 01:32:46 2015
  InstallationDate: Installed on 2015-04-02 (5 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  PackageArchitecture: all
  SourcePackage: alsa-driver
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/25/2014
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: J63 v03.69
  dmi.board.asset.tag: 2UA4242K12
  dmi.board.name: 158B
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: 1.01
  dmi.chassis.asset.tag: 2UA4242K12
  dmi.chassis.type: 6
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvrJ63v03.69:bd03/25/2014:svnHewlett-Packard:pnHPZ820Workstation:pvr:rvnHewlett-Packard:rn158B:rvr1.01:cvnHewlett-Packard:ct6:cvr:
  dmi.product.name: HP Z820 Workstation
  dmi.sys.vendor: Hewlett-Packard

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