Turn off monitor

[Ivan Voras]

Is there a way to turn off the system monitor (console screen)?

There are actually two things I'd like: to turn off the screen after 
some period of inactivity (but after the screen saver runs - to keep the 
screensaver as a reminder that the monitor will be turned off soon), and 
to turn it off programatically, with a system command/program.

Are these things supported?