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[Kaj Ailomaa <zequence@xxxxxxxxxx>]

The devices both appear in pulseaudio settings, but there is no audio
input whatsoever. Both devices have been tested on other OSs, so I can
rule out any external problem.

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https://bugs.launchpad.net/bugs/1376849

Title:
  em28xx audio device no sound (Pinnacle Dazzle DVC100, Terratec Grabby)

Status in “alsa-driver” package in Ubuntu:
  Incomplete

Bug description:
  I'm getting no input signal at all with these devices.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu4
  ProcVersionSignature: Ubuntu 3.13.0-36.63-lowlatency 3.13.11.6
  Uname: Linux 3.13.0-36-lowlatency x86_64
  ApportVersion: 2.14.1-0ubuntu3.4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  zequence   1679 F.... pulseaudio
   /dev/snd/controlC0:  zequence   1679 F.... pulseaudio
  CurrentDesktop: XFCE
  Date: Thu Oct  2 19:02:28 2014
  InstallationDate: Installed on 2014-10-02 (0 days ago)
  InstallationMedia: Ubuntu-Studio 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.1)
  PackageArchitecture: all
  SourcePackage: alsa-driver
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/08/2008
  dmi.bios.vendor: Phoenix Technologies LTD
  dmi.bios.version: R2111Q0
  dmi.board.asset.tag: N/A
  dmi.board.name: VAIO
  dmi.board.vendor: Sony Corporation
  dmi.board.version: N/A
  dmi.chassis.asset.tag: N/A
  dmi.chassis.type: 10
  dmi.chassis.vendor: Sony Corporation
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrR2111Q0:bd09/08/2008:svnSonyCorporation:pnVGN-CR31Z_R:pvr01:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
  dmi.product.name: VGN-CR31Z_R
  dmi.product.version: 01
  dmi.sys.vendor: Sony Corporation

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