For anyone looking for something like this (works real well for a display at home you don't want on overnight or whatever) vcgencmd display_power 0 will turn it off vcgencmd display_power 1 will turn it back on This will put the monitor into "sleep" mode and wake it back up when needed. you can use ...

It's an old monitor with DVI connections (I'm using a HDMI to DVI cord)

I'm using my new Pi as a digital calendar for the house, connected to a monitor in my kitchen. It would be ideal if we could schedule it to go into a "sleep mode" where it powers down the monitor when we leave for work and turns back on when we get home. Any suggestions as to how I could do that? I ...