I too have this problem with 11.10 and my UVC camera. However, I'd like to post the following workaround - I hope it helps others:
sudo rmmod uvcvideo sudo modprobe uvcvideo unplug camera from USB port plug camera back in and now all is well
Whatever the bug is it seems to only happen if the device is detected during boot.
I too have this problem with 11.10 and my UVC camera. However, I'd like to post the following workaround - I hope it helps others:
sudo rmmod uvcvideo
sudo modprobe uvcvideo
unplug camera from USB port
plug camera back in
and now all is well
Whatever the bug is it seems to only happen if the device is detected during boot.