My Lenovo Thinkpad's integrated webcam used to work just fine with 12.04. Recently I updated to 12.10 but had problems with VirtualBox crashing and had to wipe everything and reinstall 12.04. This was a hassle but so be it. My understanding is that for all intents and purposes I should now have pretty much a relatively fresh Ubuntu install and for the most part it works. Except for my webcam.
The system detects the web cam as present - both Virtualbox and Skype list it. However no application can actually do anything with it it. Cheese simply says "No device found". The troubleshooting wiki doesn't offer much help. How do I troubleshoot?