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echo: rberrypi
to: TIMS
from: ANDY BURNS
date: 2021-01-06 12:10:00
subject: Re: Pi power

TimS wrote:

> Andy Burns wrote:
>
>> What's relevant is that your monitor shouldn't be reverse feeding 5V to
>> the Pi
>
> Agreed, if that's what its doing. Could be the other Mini, I suppose. I'll
> have to do some more testing.

Wouldn't be the biggest surprise in the world if the a cheap switch box
just commoned all the 5V pins together (since it can act as either a 2>1
or 1>2 device, it'll be dumb).

But a source HDMI device is expected to protect itself from an
unexpected 5V arriving into its output, so no harm "should" occur.

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