Nouveau

nouveau is the open source driver for nVidia graphics cards.

Kernel
You need to activate the following kernel options:

xorg.conf
The X server is designed to work out-of-the-box, with no need to manually edit X.Org's configuration files. It should detect and configure devices such as displays, keyboards, and mice.

However, the main configuration file of the X server is the xorg.conf.

Multi Monitor Problems
If you're having problems with freezing with possible EDID probes with dual monitors/displays, try adding "video=VGA-1:e" to your grub.cfg/grub2.cfg command line options, substituting the name of your monitor listed within dmesg or /var/log/Xorg.0.log. (ie. VGA-1, LVDS-1, DVI-1)