title: Disabling Keyboard Shortcuts didn't work in Ubuntu
body: <p>I'm a working with eclipse in Ubuntu. In eclipse, i frequently use a shortcut "Ctrl + Alt + Down Arrow" to duplicate the current line. I found that Ubuntu also has the same shortcut to switch the workspaces. So, my problem is when I press "Ctrl + Alt + Down Arrow", it calls the system's action. I tried this by disabling the keyboard shortcut in Ubuntu too. Still, it didn't work for me. Can anyone help me on this problem ? </p>