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[weesnich <1316518@xxxxxxxxxxxxxxxxxx>]

For me neither the internal nor a plugged in microphone work (besides
USB ones). When I plug in a headset it activates my internal microphone
but in horrible quality so that you can mainly only hear the fan
rotating. But this seems to be an issue with pulseaudio as the plugged
in microphone works well when I check alsamixer. anybody knows a fix?

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https://bugs.launchpad.net/bugs/1316518

Title:
  [900X3G, Realtek ALC282, Mic, Internal] inverted mic not working

Status in alsa-driver package in Ubuntu:
  Confirmed
Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Internal Mic of Samsung Ativ book 9 (NP900X3G) is not supported
  properly.

  Stereo recording in audacity records sound from mic in L channel and only loud noise in R channel (phase inverted?)
  Muting R channel, and setting L channel to around 16%, in pavucontrol allows to record audio, but in poor quality.

  alsa-info.sh output: http://www.alsa-
  project.org/db/?f=064f0b536a1b068efd30d58c2641b5ec2348f059

  Ubuntu Gnome 14.04

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu4
  ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
  Uname: Linux 3.13.0-24-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  sarah      2014 F.... pulseaudio
                        sarah      8509 F.... alsamixer
   /dev/snd/controlC0:  sarah      2014 F.... pulseaudio
  CurrentDesktop: GNOME
  Date: Tue May  6 11:55:36 2014
  InstallationDate: Installed on 2014-04-29 (6 days ago)
  InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaRecordingTest: ALSA recording test through plughw:PCH failed
  Symptom_Card: Internes Audio - HDA Intel PCH
  Symptom_Jack: Mic, Internal
  Symptom_Type: None of the above
  Title: [900X3G, Realtek ALC282, Mic, Internal] Recording problem
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/14/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P04ADU.023.140414.PS
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: NP900X3G-K02DE
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: SAMSUNG_SW_REVISION_1234567890ABCD
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP04ADU.023.140414.PS:bd04/14/2014:svnSAMSUNGELECTRONICSCO.,LTD.:pn900X3G:pvrP04ADU:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP900X3G-K02DE:rvrSAMSUNG_SW_REVISION_1234567890ABCD:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A:
  dmi.product.name: 900X3G
  dmi.product.version: P04ADU
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
  --- 
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  sarah      2004 F.... pulseaudio
   /dev/snd/controlC1:  sarah      2004 F.... pulseaudio
  CurrentDesktop: GNOME
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=b4bd3914-d1c4-40f0-ba32-fb19aa9af13c
  InstallationDate: Installed on 2014-04-29 (27 days ago)
  InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. 900X3G
  Package: linux (not installed)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic root=UUID=92ac4966-692f-4e06-a1dd-da069008e861 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-24-generic N/A
   linux-backports-modules-3.13.0-24-generic  N/A
   linux-firmware                             1.127.2
  StagingDrivers: rts5139
  Tags:  trusty trusty staging
  Uname: Linux 3.13.0-24-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 04/14/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P04ADU.023.140414.PS
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: NP900X3G-K02DE
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: SAMSUNG_SW_REVISION_1234567890ABCD
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP04ADU.023.140414.PS:bd04/14/2014:svnSAMSUNGELECTRONICSCO.,LTD.:pn900X3G:pvrP04ADU:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP900X3G-K02DE:rvrSAMSUNG_SW_REVISION_1234567890ABCD:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A:
  dmi.product.name: 900X3G
  dmi.product.version: P04ADU
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

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