I had been using Ubuntu 11.10 with all the bells and whistles, every thing fine. I download and install the newest version of Ubuntu (12.04) and the webcam doesn't work. I tried installing cheese, but this application reports that it does not find any devices. Then I found a similar question here, but installing the application gave me the same error:
Unable to open device
Please make sure the camera is connected
and that the correct driver is installed.
I have an HP G60 with integrated webcam that worked perfectly under 11.10. What should I do?