Comment 67 for bug 22070

And here's what I promised from my side from my girlfriend's desktop. I will attach the output of lspci -vvv, dmesg output when the webcam is attached, and dmesg when attempting to use the cam.

I will include lsusb output for the webcam here inline:
Bus 002 Device 005: ID 046d:08f5 Logitech, Inc. QuickCam Messenger Communicate

and this is the message produced by *any* program trying to use the webcam, always from l4v:
libv4l2: error turning on stream: Input/output error

This is all on an x86_64 machine running Ubuntu Linux 10.4.1 with KDE, on a quad-core AMD processor with an nVidia MCP61 based chipset.