Configure VirtualBox Windows guest system to use 2 monitors

Purpose

Our host system for VirtualBox is GNU/Linux. We want our guest system, windows, to use two monitors.
This solution should work for all Linux distributions supported by VirtualBox4.

Required software

• Ubuntu 10.10 (aka Maverick) as host for VirtualBox4

• VirtualBox 4

• VirtualBox guest sytem: Windows XP (incl. VirtualBox guest additions)

Configuration

1. Setup virtual guest machine (windows) within vm host system (GNU/Linux) to use two monitors:

[caption id=“attachment_378” align=“alignnone” width=“300” caption=“Setting up virtualbox 4 to use 2 monitors for windows xp guest”][/caption]

2. Within virtual guest (windows): Configure dual monitor setup:

[caption id=“attachment_379” align=“alignnone” width=“263” caption=“Setup within virtualbox guest system (windows)"][/caption]

Side note

Upgrading from VirtualBox owned by Sun to VirtualBox owned by Oracle was very smooth. Even for Linux host systems. Oracle, thanks for that!