Few months ago, I pointed out this method to change the GDM login page background according your current background.
Now, the same author has changed a bit his great script: a debian package is now available!
Therefore, here there an update guide for achieving the automatic wallpaper change:
Remember to select the “Use Desktop Background” setting!
XSplash Settings Dialog
Update February 9th: the author of former wallpaper_daemon created a very cool debian package, check it out here!
One of the first thing I do, whenever I re-install my Ubuntu installation (when I’m bothered of upgrading it instead ^_^), is configuring a wallpaper changer.
I know, it is pointless to change your background automatically on some event (external or time-based), but it is one of these little bells and whistles you don’t need but you really became addicted to. After all there are billions and zillions of great wallpaper, why I have to choose just one of them?
(and a round robin based wallpaper let you work much better, so why not having it?)
Ok, let’s cut out this non-sense and let me give you the recipe for an automatic, time-based background changer for your desktop and GDM login.