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Re: Advice on laptop with USB-C port and USB-Type C Multipoint Adapter (and VGA)



On Thursday, December 03, 2020 04:35:37 AM David wrote:
> On Thu, 3 Dec 2020 at 02:27, <rhkramer@gmail.com> wrote:
> > I did find out that a USB-C cable / connector has 24 conductors -- so it
> > is conceivable (with my lack of knowledge) that some laptop
> > manufacturers actually put out an (analog) VGA signal on the USB-C
> > cable.
> 
> Is this just wishful thinking or do you have evidence?

Well, I guess it could be called wishful thinking, but I tried to be pretty 
clear where I was coming from: "it is conceivable (with my lack of knowledge) 
that some laptop manufacturers actually put out an (analog) VGA signal on the 
USB-C cable.

But I don't know what those 24 conductors are for, and I thought it was 
possible some were reserved for future use (or with the alternate modes) -- I 
guess your answer clarifies that there aren't any such "spare" conductors.

Thanks for your reply!

> 
> Because it's inconceivable, as far as I'm aware. Everything I have read
> about USB-C indicates that it is purely digital. Even though it seems
> to be the USB way to have countless variations of every physical and
> electrical specification, VGA is a standard from 1987, forget finding
> it on any USB-C connector. Those pins are all used for other things.


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