I have dual monitor set up in Ubuntu 11.10. I want to have a single wallpaper spanned across both monitors. How do I do this?
First you need a wallpaper large enough for both monitors. You can either make one with the gimp or down load one. Alternately you can use a separate image for each monitor.
You can then install a handy little application, nitrogen
sudo apt-get install nitrogen
You then run nitrogen with the path to the directory with your picture(s)
nitrogen ~/Pictures
And select the image. At the bottom of nitrogen, select "automatic" and "Full screen" as options. alternately you can use nitrogen to set a separate image on each screen, up to you (sort of depends on your background images).
