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

On Thu, Dec 03, 2020 at 09:35:38PM +1100, David wrote:
> On Thu, 3 Dec 2020 at 21:15, <tomas@tuxteam.de> wrote:


> > USB-C is a mess. Quoth [1]:


> Does the active cable have a USB-C connector on the VGA end?

Yes, it should.

> The comment I responded to speaks of analog VGA signals
> on a USB-C connector.

Going by the Wikipedia reference, no. Unless/until there's an Alternate
Mode defining that; I can't imagine this is going to happen.

> I thought "that's weird" so before I wrote I had a quick read of all the main
> links under the heading
>   https://en.wikipedia.org/wiki/USB-C#Alternate_Mode_partner_specifications
> and I saw no trace of any such thing.

For that to happen, there must be some entity with enough stamina and
financial power to back a hypothetical VGA Alternate Mode. Who would
have interest in that?

> As always, I'm happy to be corrected if wrong. I take no interest in
> "active cables" myself, modern passive cables are unreliable enough,
> but if someone wants to provide a link then I will enjoy a chuckle that
> someone somewhere thinks this is good engineering.

Tickling your favourite search engine (let's hope it ain't Google ;-)
yields tons of "USB-C to VGA" adapters. For all we know, they should
be "active".

Those things aren't driven by engineering. They are driven by marketing.

 - t

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