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[aerobat <austrianized@xxxxxxxxx>]

Problem still exists in trusty with mainline kernel
3.18.1-031801-generic.

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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:
  Fix Released

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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