I’ve managed to obtain two working profiles for dual monitors on the G450 on Ubuntu Edgy Eft 6.10 i386 32-bit SMP.
The X.Org Server (home page) is the official reference implementation of the X Window System. The current stable release is 1.4.0, released as part of X11R7.3 on 6 September 2007. It is both open source and free software. The project is supported and overseen by the X.Org Foundation and is hosted by freedesktop.org.
There’s a file in your linux system within /etc/X11/ called xorg.conf. X.org (also called the X11) server is mostly controlled through a configuration file, xorg.conf, for its initial setup. This controls much of the video output for your linux machine but also controls various peripherals as well. We’re not going to cover the entire file as there is far to much to cover but we will introduce the structure of the file and common areas new users to linux might have to face.