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[Bug 1241449] Re: Plantronics GameCom 780 digital output/input missing


Commenting the line out in the config file worked for me.

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  Plantronics GameCom 780 digital output/input missing

Status in “alsa-lib” package in Ubuntu:

Bug description:
  Under Ubuntu 13.10, the Plantronics GameCom 780 digital output/input
  is missing.

  Fix: Remove/comment out the Plantronics GameCom entry under USB-
  Audio.pcm.iec958_device within /usr/share/alsa/cards/USB-Audio.conf,
  reboot the box, and it reappears as a digital device. On my system
  it's line 46.

  When used as an analogue only device, the volume at 1% is unusably
  loud, as such as this device can only be used as a digital device.
  There appears to be no fix for the analogue driver, as it is
  reportedly a firmware bug, according to a alsa mailing list thread.

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