Installing the Lenovo USB Webcam (type 40Y8519, Webpage at Lenovo Products)
For quick camera testing I have found svv to be very useful.
If problems arise it is also worth having a look at the GSPCA driver maintainer's website.
Skype uses the old V4L1 interface which requires the v4l1compat library to be preloaded. The command for this would simply be:
instead of just
Or, on a Debian/Ubuntu 64-bit machine, Skype should be started thus:
You can replace the commands of your Skype menu item from 'skype' to one of the lines above.