first ensure you have installed compiz:
Under EFFECTS, enable Window Decorations.
This is where I got stuck for 2 months. In most distros, this is all you have to do, but there is another step in Mate:
Open a terminal and type:
You should now have compositing enabled.
Source: http://askubuntu.com/questions/536717/mate-compositing-windows-manager
sudo apt-get install compiz compiz-plugins compizconfig-settings-manager
Open compiz settings manager by typing ccsm
in the terminal, or just find it in the dash.Under EFFECTS, enable Window Decorations.
This is where I got stuck for 2 months. In most distros, this is all you have to do, but there is another step in Mate:
Open a terminal and type:
dconf write /org/mate/marco/general/compositing-manager true
You should now have compositing enabled.
Source: http://askubuntu.com/questions/536717/mate-compositing-windows-manager