
If you already have the additional equipment installed The easiest way to begin experimenting with multiple monitors is start with a system which has a working X set-up supporting a single monitor. This document describes how to configure such a system. It is even possible to join the displays from several computers - each with single or multiple monitors - into one very large extended desktop.

It is also possible to have these multiple monitors work together as an extended single desktop. In some cases this is exactly what is required allowing the same desktop to be viewed from different directions. If you plug in multiple monitors to whatever video sockets you have available, they will more often than not "just work" - offering two or more versions of the same display. Nowadays, most laptops come with a main display and a socket for an external monitor while the integrated video cards on desktop systems provide VGA + DVI + HDMI outputs as standard. Then some high-end video cards began appearing with outputs for two monitors. Many years ago this was only possible by installing two or more video cards in a computer. Several monitors can be attached to a single computer system.

(Discuss in Talk:Extreme_Multihead#Multihead_Consolidation) Notes: only a specific case of Multihead.
