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298 points croes | 4 comments | | HN request time: 0.001s | source
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franky47 ◴[] No.45088822[source]
I own a Switch 1, and the other day I wanted to play on the train, but the battery was low. I figured "no problem, I can connect it to my laptop and let it charge off is battery".

Nope. The MacBook Pro started charging off the Switch instead.

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1. red369 ◴[] No.45089390[source]
I was really excited when I learned that unplugging the cable, waiting some short period of time and plugging it back in, triggers a power-role swap.

I've only tried it out on one occasion, and I'm not clear on the delay, or whether both ends need to be disconnected or only one. I was a little surprised it isn't talked about more.

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2. stephen_g ◴[] No.45089464[source]
Is that for a specific device? For standard dual-role USB-C devices they do a negotiation that is partially based on chance which power role they land on (but they can have policy that strongly prefers one role over the other).
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3. djtango ◴[] No.45089793[source]
I have this issue with my power bank and my Linux machine. In the end my workaround has to put it in suspend by closing the lid then plugging in the power bank
4. red369 ◴[] No.45097233[source]
Whatever I read made me think it was some sort of standard.

You know more about this than me, so now I think what I stated about unplugging and re-plugging is likely incorrect advice, one step above "turn the cable around" which I think also works enough of the time that people keep trying it and repeating it as a method.