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[Launchpad Bug Tracker <1046449@xxxxxxxxxxxxxxxxxx>]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

** Changed in: linux (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1046449

Title:
  Acer Aspire 8943G internal stereo microphone doesn't work

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  The internal stereo microphone in the laptop doesn't work.

  A WORKAROUND is to mute one of the two channels - making the
  microphone input mono only - using e.g. hda_analyzer or possibly
  pavucontrol. I was not able to get both channels working
  simultaneously - as one channel's volume gets higher, the input volume
  gets lower and lower as if the two channels interfered.

  There is an existing bug #683901 filled about the stereo microphone.

  In addition, the built-in Dolby Home Theater 5.1 Cinematic Surround
  speakers are recognized at best as 4.0 (not using front center and LFE
  which is rear center) - only if I select 4.0 from the list in System
  volume, default is stereo (that's wrong, isn't it?!). I was not able
  to get these two speakers to work even using hda_analyzer. There is
  also a bug filled about it as bug #839800 but, as well as the thread
  at ALSA bug tracker, is dead. In the ALSA bugtracker, I was advised to
  send a mail to the ALSA mailing list - I tried sending the mail twice
  but was waiting a year for absolutely no response - the mail wasn't
  even published in the list if I'm right. I have really no idea what
  more could I do about it.

  Tested on Ubuntu 12.10 - today's build (5th September 2012)

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: linux-image-3.5.0-13-generic 3.5.0-13.14
  ProcVersionSignature: Ubuntu 3.5.0-13.14-generic 3.5.3
  Uname: Linux 3.5.0-13-generic x86_64
  AcpiTables: Error: command ['pkexec', '/usr/share/apport/dump_acpi_tables.py'] failed with exit code 127: Error executing /usr/share/apport/dump_acpi_tables.py: Permission denied
  ApportVersion: 2.5.1-0ubuntu4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  ubuntu     4645 F.... pulseaudio
   /dev/snd/controlC0:  ubuntu     4645 F.... pulseaudio
  CRDA:
   country AT:
    (2402 - 2482 @ 40), (N/A, 20)
    (5170 - 5250 @ 40), (N/A, 20)
    (5250 - 5330 @ 40), (N/A, 20), DFS
    (5490 - 5710 @ 40), (N/A, 27), DFS
  CasperVersion: 1.321
  Date: Wed Sep  5 17:00:00 2012
  LiveMediaBuild: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120904.1)
  MachineType: Acer Aspire 8943G
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=cs_CZ.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: noprompt cdrom-detect/try-usb=true persistent file=/cdrom/preseed/username.seed boot=casper initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
  RelatedPackageVersions:
   linux-restricted-modules-3.5.0-13-generic N/A
   linux-backports-modules-3.5.0-13-generic  N/A
   linux-firmware                            1.91
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/11/2010
  dmi.bios.vendor: Phoenix
  dmi.bios.version: V1.06
  dmi.board.name: SM83-CP
  dmi.board.vendor: Acer
  dmi.board.version: Not Applicable
  dmi.chassis.type: 10
  dmi.chassis.vendor: Acer
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnPhoenix:bvrV1.06:bd08/11/2010:svnAcer:pnAspire8943G:pvrNotApplicable:rvnAcer:rnSM83-CP:rvrNotApplicable:cvnAcer:ct10:cvrN/A:
  dmi.product.name: Aspire 8943G
  dmi.product.version: Not Applicable
  dmi.sys.vendor: Acer

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