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[Bug 743368] No signal from external mic on MacBookPro

 

Thank you for taking the time to report this bug and helping to make
Ubuntu better. The issue that you reported is one that should be
reproducible with the live environment of the Desktop CD of the stable
release - Oneiric Ocelot. It would help us greatly if you could test
with it so we can work on getting it fixed. You can find out more about
it at http://www.ubuntu.com/download . Thanks again and we appreciate
your help.

** Changed in: gnome-media (Ubuntu)
   Importance: Undecided => Low

** Changed in: gnome-media (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/743368

Title:
  No signal from external mic on MacBookPro

Status in “gnome-media” package in Ubuntu:
  Incomplete

Bug description:
  Binary package hint: gnome-media

  The external mic provides no input signal. gnome-volume-control shows the input channels "internal microphone", "analog line-in", "rear microphone" and "analog microphone". None of these pick up anything from the external microphone. 
  "Hardware" is set to "Analog stereo duplex", but I also tried "Analog Surround 4.0 + Analog Stereo Input" without success. 

  Internal mic works (verified with gnome-volume-control and gtk-recordMyDesktop).
  External microphone hardware was verified with another computer.

  Natty (dev. branch) on a MacBookPro6.2

  lspci identifies the sound card as:
  00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 06)
  	Subsystem: Intel Corporation Device 7270

  gnome-media:
    Installed: 2.32.0-0ubuntu6
    Candidate: 2.32.0-0ubuntu6
    Version table:
   *** 2.32.0-0ubuntu6 0
          500 http://de.archive.ubuntu.com/ubuntu/ natty/main amd64 Packages
          100 /var/lib/dpkg/status

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: gnome-media 2.32.0-0ubuntu6
  ProcVersionSignature: Ubuntu 2.6.38-7.39-generic 2.6.38
  Uname: Linux 2.6.38-7-generic x86_64
  NonfreeKernelModules: nvidia wl
  Architecture: amd64
  Date: Sun Mar 27 00:09:33 2011
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64+mac (20110323)
  ProcEnviron:
   LANGUAGE=en_US:en
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: gnome-media
  UpgradeStatus: Upgraded to natty on 2011-03-26 (0 days ago)

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