X-tile is an application that allows you to select a number of windows and tile them in different ways. It works on any X desktop like Gnome, KDE, XFCE, LXDE. The main features are: many tiling geometries, undo tiling, invert tiling order, optional system tray docking and menu...
Superpaper is an advanced multi monitor wallpaper manager for Linux, Windows and Mac OS X operating systems.This app doesn't have any features at the moment.
Superpaper vs DisplayFusion opinions
Good alternative for DisplayFusion's multi-desktop spanned wallpaper feature.