How can I start a different X session on tty8?

Question

Let's say, for an example, I want to run a full-screen opengl application on tty8 and have my standard GNOME desktop on tty7. How can I configure Ubuntu to meet my requirements?

Solution

To start a new X session on tty8, drop to tty1 (or 2-6) and type

startx -- :1

Comments

[bambuntu]

This config file: /etc/X11/gdm/gdm.conf is not in the location stated in the answer.

[balki]

This works but sound and keyboard is still connected to the old one. When I switch to the other terminal, I am not able to use keyboard and sound doesn't appear. But mouse works though