Question Usb 3.0 to HDMI

[Atif Javed]

I bought a usb C to HDMI adaptor so I can set up dual screens

The problem is I have 2 laptops one with USB C and one with USB A 3.0

I also bought a USB C to usb A Adaptor thinking I can use the same adaptor and switch it between laptops, so I can switch the cables from laptop to laptop and use dual screens

So
Laptop 1
USB C >> HDMI >> dual monitor (working)

Laptop 2
USB 3.0 >> USB C >> HDMI >> Dual monitor (not working)

My question is what am I doing wrong
Why when I use a usb C female to USB 3.0 male Adaptor to connect is to my laptop it doesn't work

What am I doing wrong

 

[rgd1101]

usb 3.0 don't do display

 

[Atif Javed]

usb 3.0 don't do display

But you can buy USB 3.0 to HDMI Adaptors
Some docking stations are USB 3.0

 

[bignastyid]

But you can buy USB 3.0 to HDMI Adaptors
Some docking stations are USB 3.0

There are USB adapters that have a very basic gpu in them, that's why they work. Example

Your adapter chain on laptop 2 has no gpu in it so it won't work.

In laptop 1 you likely have a USB C that supports video(not all usb C ports support video).

 

[hotaru.hino]

But you can buy USB 3.0 to HDMI Adaptors
Some docking stations are USB 3.0

These adapters work by requiring a special driver to be installed to create a software based video output device. Then the CPU does all the rendering and sends it over the USB port.

Also Type-A ports don't have enough pins to support HDMI anyway.