I am running Ubuntu 11.10, and I have three monitors plugged in. How can I have one single image across every single monitor plugged into the machine?
This works in windows, so i don't see why it wouldn't work on Ubuntu. You need a picture that matches the dimensions of the entire desktop area. So for example you have two monitors running 1440x900, youll need a 2880x900 picture. Set it as the background and set it to TILE. These settings are the same from Windows to Ubuntu. It will start it in the upper left of the left most monitor and tile it accross all monitors. But since the image IS the size of the entire desktop, it technically doesnt tile, you just see one image. I have this as my setup on my 3 monitor work machine.
As long as the other monitor isnt a whole nother workspace on the ubuntu machine, but just an extension of the main monitors desktop area. I think it will still work.
Unfortunately this doesnt work so well if you have any of the monitors rotated so they are not the same as the rest. Basically the desktop has to be a rectangle that can be filled by one image.