How to display images on external projectors on Ubuntu7.04

When I was preparing to use the Ubuntu system at home last time, I tried the external monitor of my home [the principle of external projector is the same] and found that no matter how long I press Fn + F7, or other methods do not support displaying images on both sides of the desktop! Today, I am trying to find answers online! Finally, the solution is found: 1. Edit:/etc/X11/xorg. conf adds the following sentence between Driver "i810" and BusID "PCI: 0: 2: 0": Option "MonitorLayout" "CRT, LFP" at home last time, when preparing to use the Ubuntu system, try the external monitor of my home [the principle of external projector is the same], and find that no matter how Fn + F7, or other methods do not support displaying images on both sides of the desktop!

Today, I am trying to find answers online! Finally found the solution:

1. Edit:/etc/X11/xorg. conf.
In
Driver "i810 ″
And
Add the following two sentences between the BusID "PCI: 0: 2: 0:

Option "MonitorLayout" "CRT, LFP"
Option "Clone" "true"

2. Save and exit!

3. Restart your XWindows or your computer!

Now you can implement the external display or projector function!