Waking a Monitor

[JonnyAlpha]

Hi;

I am developing a project part of which starts a video playing the Pi detects movement using a PIR detector.
I have successfully written a short piece of code that plays a video when motion is detected but after a short while the monitor / Pi goes into sleep mode and when the monitor is blank the video does not wake up the monitor?

To get around this I need a way of waking up the monitor?

After Googling I found this page:

http://raspberrypi.stackexchange.com/qu ... creensaver

It suggests using this command:
xset s reset && xset dpms force on

I tried xset -q from a remote session over SSH and it returned -
xset: unable to open display ""

Do I need to name the display?

[JonnyAlpha]

SOLVED

Hi;

Did some more research and found the command 'tvservice'.
So 'tvservice -o' switches the monitor off and 'tvservice -p' switches it on, so I just need to create a bash script to switch the monitor on and call is using OS from within my python program.

Job Done - I think