This might seem unrelated but I have a question to the crowd related to 3 monitor setup with Ubuntu. Does anyone know how to use Intel + Nvidia on Ubuntu 12.04

This might seem unrelated but I have a question to the crowd related to 3 monitor setup with Ubuntu. Does anyone know how to use Intel + Nvidia on Ubuntu 12.04 (or later)? I was able to do this in the past with Windows but I can't get it working with Ubuntu.