Doesn’t matter. The VGA to HDMI adapter is active, not passive, so it matters if HDMI has a 5v rail, not VGA
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TimeNaan@lemmy.world 3 weeks agoYeah but is the voltage correct? It should be 5V to charge a phone over USB, is that part of the VGA spec?
- Anivia@feddit.org 3 weeks ago- Fluffy_Ruffs@lemmy.world 3 weeks ago- If, hypothetically, VGA didn’t have a 5v rail then how would power get from the monitor to the HDMI adapter. It would absolutely have to be a part of the spec. - Anivia@feddit.org 3 weeks ago- It doesn’t need to be 5v. An active adapter can have a buck converter. - In reality active HDMI adapters get powered by the HDMI device though, not the VGA monitor, so it’s a moot point anyways 
- knight_alva@lemmy.world 3 weeks ago- If the vga/hdmi adapter is active then this abomination could actually pass display information provided you had a micro-usb device that supported display out over usb (idk if there is such a thing and if so it probably doesn’t work all that well but still) 
 
 
9point6@lemmy.world 3 weeks ago
Yeah I don’t think there’s a 5V pin for VGA.
I think if we had the scenario where we had a higher voltage than needed, we could have a toasty voltage regulator making something happen, but going the other way would need boost circuit unlikely to exist in these parts, in my understanding
brown567@sh.itjust.works 3 weeks ago
There is! It’s pin #9
9point6@lemmy.world 3 weeks ago
Ah my memory failed me then! Thanks for the correction, I guess this is technically possible then!