Public bug reported:

I have a webcam Logitech Communicate STX, which connects via USB and has 
integrated USB microphone.
The audio is working just fine.
My problem is with the video, when I start an application like Cheese, 
gstreamer-properties, vlc or empathy the video starts, but shortly after it 
freezes.
Initially I thought it froze completely, but it didn't, if I make some movement 
very close to the camera (ie. moving my hand swiftly in front of it) it will 
start sending video again, but as soon as I stop this fast movement, the camera 
will freeze again.

See:
https://answers.launchpad.net/ubuntu/+source/linux/+question/172791

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-generic (not installed)
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.38-11.50~lucid1-generic-pae 2.6.38.8
Uname: Linux 2.6.38-11-generic-pae i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: i386
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'PCH'/'HDA Intel PCH at 0xfe500000 irq 52'
   Mixer name   : 'Intel CougarPoint HDMI'
   Components   : 'HDA:10ec0887,1043840b,00100202 
HDA:80862805,80862805,00100000'
   Controls      : 28
   Simple ctrls  : 15
Card1.Amixer.info:
 Card hw:1 'U0x46d0x8d7'/'USB Device 0x46d:0x8d7 at usb-0000:00:1d.0-1.1, full 
speed'
   Mixer name   : 'USB Mixer'
   Components   : 'USB046d:08d7'
   Controls      : 3
   Simple ctrls  : 2
Card2.Amixer.info:
 Card hw:2 'Bt878'/'Brooktree Bt878 at 0xd0100000, irq 17'
   Mixer name   : 'Bt87x'
   Components   : ''
   Controls      : 3
   Simple ctrls  : 5
Date: Fri Sep 30 22:35:54 2011
HibernationDevice: RESUME=UUID=047c9d25-30b2-4d27-9131-f786bd76b3b0
InstallationMedia: Ubuntu 10.04.3 LTS "Lucid Lynx" - Release i386 (20110720.1)
IwConfig:
 lo        no wireless extensions.
 
 eth1      no wireless extensions.
MachineType: System manufacturer System Product Name
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-11-generic-pae 
root=UUID=9abad623-fd3c-459e-8b7c-4a890f639877 ro quiet splash
ProcEnviron:
 LANG=en_SG.utf8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.34.7
RfKill:
 
SourcePackage: linux
dmi.bios.date: 03/31/2011
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0803
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: P8H67-M LE
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr0803:bd03/31/2011:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP8H67-MLE:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: apport-bug i386 lucid needs-upstream-testing regression-proposed

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https://bugs.launchpad.net/bugs/863351

Title:
  Webcam stops if there is no movement

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