http://askubuntu.com/questions/22207/quickly-place-a-window-to-another-screen-using-only-the-keyboard
-
Install CompizConfig Settings Manager
sudo apt-get install compizconfig-settings-manager
-
Run it → Go to bottom (Window Management) → Go to "Put."
- Enable the plugin.
- Configure shortcut for "Put to next Output."
- Log out and back in again.
If the plugin put doesn't appear in CCSM, install the compiz-plugins package. (sudo apt-get update && sudo apt-get install compiz-plugins
)
EDIT: The required plugin package is now called compiz-plugins
on 12.10 and higher. compiz-plugins-extra is still used for 12.04.