Cairo-dock needs composite manager to display dock properly, mate composit feature is not on by default, below are the commands to turn on composite feature and windows tilling.

$ dconf write /org/mate/marco/general/compositing-manager true
$ dconf write /org/mate/marco/general/center-new-windows true
$ dconf write /org/mate/marco/general/side-by-side-tiling true 
Advertisements