I do change the
Turn screen off when incative for: often using the below screen in Ubuntu 12.04. How do I change the same from the terminal? I did check in the gconf-editor, but couldn't figure it out.
I use the below commands for turning the monitor off and for the locking the screen quickly from the terminal.
alias off='xset dpms force off' alias lock='gnome-screensaver-command -a'