Got my laptop and HDMI connection.
Not at all…
It's not about that because it's an EXIT. Signals can only be received with an INPUT.
You could connect them via a LAN or USB cable.
Google on the internet according to the booklets https://www.knowware.de/
call there once and say your problem
they send you the magazine
A laptop has no graphics input, so forget it. You probably confuse this with the graphic output sport, e.g. Can connect a projector to the laptop.
if you want to expand your pc desktop, then only with a normal, second monitor.
Works with the Spacedesk https://spacedesk.net/ program. For this you need to install the Spacedesk Driver on your PC and the Viewer software on the laptop. However, I would recommend connecting both devices to the Internet via a LAN connection, since unfortunately the connection is otherwise not very good.