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[–] 7 points 1 year ago (2 children)

The USB device would have been made wrong if it just shoved 12V down the power lines without negotiating it.

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  • [–] 1 point 1 year ago (1 child)

    That's probably only true for USB power supplies - a USB adapter isn't set up to do anything with voltage and probably just passes the positive and negative pins through.

    The VGA adapter feeding power back through USB in the first place, yeah, that's not supposed to happen.

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