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[Eric Ding <1017072@xxxxxxxxxxxxxxxxxx>]

That fix was from three hours ago, and made it into mainline 3.6, I
believe. I've long since switched computers and haven't tested it
recently, but I would assume it has long since made it into Ubuntu's
releases.

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https://bugs.launchpad.net/bugs/1017072

Title:
  046d:08c1 Regression: Quickcam Fusion doesn't work after first time

Status in Linux:
  Fix Released
Status in linux package in Ubuntu:
  Triaged

Bug description:
  The first time I plug in this webcam, it seems to work ok (e.g., in
  guvcview). If I turn off the webcam and then turn it on again, all I
  see is a noisy screen with lots of multicolored horizontal lines (see
  attached; colors change in response to waving my hand in front of
  webcam lens, so I know it's still receiving/processing video from
  camera). Sometimes, it works the second time, but after a few more
  times, I see the video with just noise again.

  I see this problem after upgrading from Maverick straight to Precise.
  This is reminiscent of bug 865131, which expired on 2012-05-30. I've
  tested with mainline kernel 3.4 as well, with similar results.

  046d:08c1 Logitech, Inc. QuickCam Fusion

  WORKAROUND: If I unplug the webcam and then plug it back in, then the
  video shows up again -- at least for one time.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-25-generic-pae 3.2.0-25.40
  ProcVersionSignature: Ubuntu 3.2.0-25.40-generic-pae 3.2.18
  Uname: Linux 3.2.0-25-generic-pae i686
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu8
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  ericding   3287 F.... pulseaudio
   /dev/snd/controlC0:  ericding   3287 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xfe020000 irq 48'
     Mixer name	: 'Analog Devices AD1984'
     Components	: 'HDA:11d41984,17aa20d7,00100400'
     Controls      : 32
     Simple ctrls  : 20
  Card1.Amixer.info:
   Card hw:1 'U0x46d0x8c1'/'USB Device 0x46d:0x8c1 at usb-0000:00:1d.7-1, high speed'
     Mixer name	: 'USB Mixer'
     Components	: 'USB046d:08c1'
     Controls      : 2
     Simple ctrls  : 1
  Card1.Amixer.values:
   Simple mixer control 'Mic',0
     Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
     Capture channels: Mono
     Limits: Capture 0 - 3072
     Mono: Capture 1536 [50%] [24.00dB] [on]
  Card29.Amixer.info:
   Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 7KHT24WW-1.08'
     Mixer name	: 'ThinkPad EC 7KHT24WW-1.08'
     Components	: ''
     Controls      : 1
     Simple ctrls  : 1
  Card29.Amixer.values:
   Simple mixer control 'Console',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  Date: Sun Jun 24 15:37:19 2012
  HibernationDevice: RESUME=UUID=659e091f-4341-4c37-85eb-04642310de7a
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
  MachineType: LENOVO 7732CTO
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcEnviron:
   TERM=xterm
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-25-generic-pae root=/dev/mapper/vg-root ro quiet splash
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-25-generic-pae N/A
   linux-backports-modules-3.2.0-25-generic-pae  N/A
   linux-firmware                                1.79
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/11/2009
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 7LETC6WW (2.26 )
  dmi.board.name: 7732CTO
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr7LETC6WW(2.26):bd05/11/2009:svnLENOVO:pn7732CTO:pvrThinkPadR61/R61i:rvnLENOVO:rn7732CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 7732CTO
  dmi.product.version: ThinkPad R61/R61i
  dmi.sys.vendor: LENOVO

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