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[Raymond <1027570@xxxxxxxxxxxxxxxxxx>]

that is normal as you tron front mic playback switch and rear mic
playback switch


Simple mixer control 'Front Mic',0
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 31 [100%] [12.00dB] [on]
  Front Right: Playback 31 [100%] [12.00dB] [on]
Simple mixer control 'Front Mic Boost',0
  Capabilities: volume penum
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 3
  Front Left: 3 [100%] [30.00dB]
  Front Right: 3 [100%] [30.00dB]


** Changed in: pulseaudio (Ubuntu)
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/1027570

Title:
  [Ubuntu 12.04 32bit, Realtek ALC662 rev1, Pink Mic, Front] Sound is
  distorted

Status in pulseaudio package in Ubuntu:
  Incomplete

Bug description:
  Ubuntu 12.04; linux-kernel 3.2.0-27; alsa driver ver. 1.0.24 i have
  some problem with my HDA Intel ALC662 rev1. When i unmuting front mic
  in alsamixer, noise appear in my speakers in rear panel, but anyone
  devices is not plugged in in front panel. Besides in pulseaudio-
  control panel in hardware properties my device set to analog stereo
  duplex, and i can't set it to analog stereo output beacouse it's
  always set back to stereo duplex.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu1
  ProcVersionSignature: Ubuntu 3.2.0-27.43-generic-pae 3.2.21
  Uname: Linux 3.2.0-27-generic-pae i686
  NonfreeKernelModules: nvidia
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu11
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  skif       1850 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xdbef8000 irq 43'
     Mixer name	: 'Realtek ALC662 rev1'
     Components	: 'HDA:10ec0662,10438290,00100101'
     Controls      : 38
     Simple ctrls  : 20
  CurrentDmesg: [   24.064008] eth0: no IPv6 routers present
  Date: Thu Jul 19 23:01:21 2012
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
  PackageArchitecture: all
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaRecordingTest: ALSA recording test through plughw:Intel successful
  Symptom_Card: Встроенное аудио - HDA Intel
  Symptom_Jack: Pink Mic, Front
  Symptom_PulseAudioRecordingTest: PulseAudio recording test through plughw:Intel successful
  Symptom_Type: Digital clip or distortion, or "overdriven" sound
  Title: [System Product Name, Realtek ALC662 rev1, Pink Mic, Front] Sound is distorted
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/07/2008
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 0404
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: P5G-MX
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev x.xx
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: ASUSTek Computer INC.
  dmi.chassis.version: Rev 1.xx
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0404:bd01/07/2008:svnSystemmanufacturer:pnSystemProductName:pvrRev1.xx:rvnASUSTeKComputerINC.:rnP5G-MX:rvrRevx.xx:cvnASUSTekComputerINC.:ct3:cvrRev1.xx:
  dmi.product.name: System Product Name
  dmi.product.version: Rev 1.xx
  dmi.sys.vendor: System manufacturer

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