Created attachment 399567 [details] The end of my /var/log/messages file, as of when I plug in the webcam. Description of problem: No webcam software recognises /dev/video0 I'll attach the end of my /var/log/messages file, which shows mixed messages about this device as I plug it in. Version-Release number of selected component (if applicable): kernel 2.6.33-1.fc13.x86_64 libv4l 0.6.4-2.fc13.x86_64 How reproducible: Every time Steps to Reproduce: 1. Plug in Logitech Fusion 2. Launch any webcam software Actual results: Errors regarding missing /dev/video0 or segfault (in the case of Cheese, probably needs a bug). Expected results: Delicious, webcammy video.
Created attachment 399568 [details] Results of "lsusb -v".
It's probably also worth noting that this particular webcam probably last worked for me in Fedora 9, but one day an update broke it. It still works in Windows though. Also, there is a newer revision of this webcam with a different product ID, but the exact same name. This older revision isn't supported in the newest Windows drivers available from Logitech, so I suspect the hardware is fairly different.
Thanks for the reports and the logs I've mailed the upstream uvc driver author and asked him to take a look at this.
http://www.ideasonboard.com/uvc/#footnote-1 "First and second generation Logitech webcams suffer from firmware bug which make the camera somehow unstable. As the issue is timing-related, the exact impact of the bug on a particular user can't be predicted." Condolences, it seems you've been hit by the infamous Logitech firmware bug. There's no solution for this at the moment, and I seriously doubt there will be any (troubleshooting the problem would require a USB 2.0 analyzer, a pretty good knowledge of the EHCI internals and lots of time).
Ira, the firmware bug Laurent relates to is a lowlevel usb timing issue, which windows somehow manages to not trigger. I'm afraid there is very little we can do here, so I'm going to close this bug.