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It's a well-known phenomenon, known as Induction [Electromagnetic induction to disambiguate] In short, any alternating current passing through a wire will generate a magnetic field, alternating at the same frequency. Any alternating magnetic field will induce an alternating current in a nearby wire, of the same frequency. The result is that the signals ...


I have the same scenario you are asking for. I am using Two Extra monitor with my laptop. One of them is connected via HDMI cable another one is via VGA, and it's perfectly ok. Though the image quality on HDMI cable connected monitor is much better than VGA Monitor.

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