Some USB-C adapter on Mojave 10.14.1 - No signal on HDMI

[AlbanRampon]

Thank you very much,

From what I can see on the manufacturer web page about the product restrictions, this isn't a product using DisplayLink technology. Otherwise it wouldn't be only supporting one display on macOS (the asterisk) in specific plug combination.

https://www.iogear.com/product/GUD3C02/
You can also look at the product datasheet, this is an Alternative Mode Product, not a universal USB one.
The DisplayLink driver is no use to you as you don't have a product with our techno in it.

I recommend you contact the manufacturer for assistance on their product.

Kind regards,
Alban

[TCNHMT]

Originally Posted by AlbanRampon

Thank you very much,

From what I can see on the manufacturer web page about the product restrictions, this isn't a product using DisplayLink technology. Otherwise it wouldn't be only supporting one display on macOS (the asterisk) in specific plug combination.

https://www.iogear.com/product/GUD3C02/
You can also look at the product datasheet, this is an Alternative Mode Product, not a universal USB one.
The DisplayLink driver is no use to you as you don't have a product with our techno in it.

I recommend you contact the manufacturer for assistance on their product.

Kind regards,
Alban

Thank you Alban for taking the time to assist me with this issue, that wasn't an issue related to DisplayLink. My apologies.

[AlbanRampon]

That's alright, I'm keen on helping where I can.

There's no driver for this type of product. That's both the advantage and inconvenience... The same way having a driver for DisplayLink is both an advantage and inconvenience: you have to install something but at least we can improve the behaviour. It also means that unlike the Alternate Mode dock, we have less laptop hardware demands: we use real USB traffic, which is always present on a USB-C connector, and can go through USB hubs.

Kind regards,
Alban