Installing driver NVIDIA Optimus in Ubuntu 12.04

The first thing you must know is that NVIDIA Optimus can be installed in Ubuntu with the help of Bumblebee. The sites is in http://bumblebee-project.org/.
Let's go to install Bumblebee in your PC :D


1. Add PPA Bumblebee

sudo add-apt-repository ppa:bumblebee/stable

If you are on Ubuntu 11.04 or older and want newer drivers (recommended) than the ones available in the official repos, run:

sudo add-apt-repository ppa:ubuntu-x-swat/x-updates

2. Updating your repository

sudo apt-get update

3. installing Bumblebee

sudo apt-get install bumblebee bumblebee-nvidia

4.  Change connected monitor setting

sudo nano /etc/bumblebee/xorg.conf.nvidia

Change [Option "ConnectedMonitor" "DFP"] to [Option "ConnectedMonitor" "CRT-0"]

Press Ctrl+o, enter, and then Ctrl+x

Check your  NVIDIA graphic card with optirun glxspheres :D