I have compiz installed on ubuntu 14.04 running gnome classic with window decoration enabled. To enable compiz I can type
compiz --replace but the panel at the top disappears. Does anyone know how to fix that?
If it works in Gnome as it does in Xubuntu, you need to have the Greybird theme for the bar to show.
sudo apt-get install dconf-tools
Then press ALT+F2 and run:
dconf-editor, navigate to org > gnome > desktop > wm > preferences and change the "theme" value from "Adwaita" to "Greybird"