www.LinuxHowtos.org

Multiple X-Sessions

XFree86 allows you to have multiple X sessions open at once. This can be useful if you want or need two different desktop environments open at once.

Code Listing 1

    // By default X uses the display :0 
% startx 
    // To open a second display, use another number 
% startx -- :1

The desktops will be on terminals F7-F12

From http://www.gentoo.org/news/en/gwn/20040405-newsletter.xml