Recently I’ve been messing around with HDMI cables since I’ve been watching Netflix movies and TV shows on my TV that isn’t smart.
I have noticed that the cables can discern if they’re plugged in or not. If I plug in the cable with my computer off, the TV says “No signal”, and if I disconnect the cable, the TV says “Verify cable connection”. How do the device knows the difference?
I apologize for my poor English.
In: Technology
There is a specific wire inside the cable that is reserved for detecting whether the connectors are plugged in. Basically one half of a simple circuit is in the display and the other half is in the source device. When the two halves are connected via the cable, they output a different signal than what they do when they are separated.
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