The Yodeck Player (or Raspberry Pi) generally includes a CEC adapter on its HDMI monitor port. CEC is a standard communication protocol supported by most major TV manufacturers. It allows for a playback device (the Yodeck Playbox) to power on, power off, and switch video inputs on a CEC-enabled TV. Check out the CEC compatibility chart.
Are all monitors and TVs compatible with this feature?
If your monitor does not support CEC (e.g., you have a computer monitor), the Yodeck Player turns off the HDMI port to allow the monitor to power down by itself. This function is supported by all current computer monitors, even some TVs. Kindly take a look here for further details on how to create the script for that.
If you use an HDMI-to-VGA adapter on the Yodeck Player, the software will attempt to turn off the HDMI/VGA port, which this hardware might not support.
In the future, we will support using infrared LEDs to switch the monitor on or off through IR, just like standard TV remotes do. We can support custom solutions, like the above, or custom serial connections to monitors for large installations. Also, we will be providing programming hooks that will allow you to create custom scripts to power the monitor on/off.