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[Colan Schwartz <colan@xxxxxxxxxxxxxxxxxxx>]

Could this be related to https://bugs.launchpad.net/ubuntu/+source
/gnome-media/+bug/856110?

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https://bugs.launchpad.net/bugs/800979

Title:
  gnome-volume-control doesn't control USB headset speaker volume

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

Bug description:
  This problem began immediately after I upgraded from Maverick to Natty (11.04). I tried using an old kernel and it did not help.
  Installed version of gnome-media is 2.32.0-0ubuntu7.

  When I plug my USB headset in, it shows up in gnome-volume-control and
  I can select it as the default output device. (The headset also has a
  microphone which I can select as an input device, and seems to work
  properly.)

  The available output profiles for the selected device are:
  1. Digital Stereo (IEC958) Output
  2. Analog Stereo Output

  If I choose option 1, the output volume control affects the volume of the device (but see below).
  If I choose option 2, the output volume control has no effect.

  HOWEVER, there is another variable here, an extra volume control that
  I can only access in alsamixer for the USB device, which is called
  "Speaker". This volume control is unrelated to any of the gnome-
  volume-control controls (changing one will not cause the other to
  update), but it also influences the output volume of the headset! For
  instance, if this volume control is 0 and the "Digital Stereo Output"
  control is 100, there is no sound. If this volume control is 100 and
  the "Digital Stereo Output" is 0, there is no sound. If they are both
  100 then there is sound.

  The problem is all the more annoying because each time I plug the USB
  device in, the "alsamixer" volume control resets to 0, meaning I have
  to go into alsamixer each time I plug the device in in order to hear
  anything.

  
  Relevant lsusb and amixer output attached.

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