I bought a Lenevo IdeaPad Y500. I erase its windows and install Ubuntu 12.04.2 LTS on it. I can not use my webcam on my laptop. I check Skype and guvcview non of them can detect my webcam. The following link said it will be working by upgrading to Ubuntu 13.04. Lenovo Y500 camera not working.
You may not have the most up to date kernel.
Try opening up Terminal and entering the following command, entering your password as necessary.
This will update your software and kernel hopefully getting the software you need for the camera.