http://askubuntu.com/questions/142128/open-windows-in-center-of-screen
Compiz config settings managerをインストール
sudo apt-get install compizconfig-settings-manager
Window Management > Place Windows, enable it, and in "Placement Mode" => Cascade
http://askubuntu.com/questions/142128/open-windows-in-center-of-screen
Compiz config settings managerをインストール
sudo apt-get install compizconfig-settings-manager
Window Management > Place Windows, enable it, and in "Placement Mode" => Cascade