This reminds me of the time when I had a TV attached to my computer through HDMI and I wanted to write a program that checked whether it was on or off. It turne

This reminds me of the time when I had a TV attached to my computer through HDMI and I wanted to write a program that checked whether it was on or off. It turned out to be impossible, because even when it was turned off, it still appeared as connected on Windows because it was technically on stand by.