Since I have a PC with an 8th GEN Intel i5 processor 8400 and an Intel UHD Graphics 630, I thought I should ask here.
I have one Monitor connected via HDMI and when i connect the Samsung Smart TV with HDMI while it has no power, its fine, but when I turn on the power Monitor Display freezes, can't move the mouse and the picture is "shaking".
When I connect the TV when it has power and is turned on, everything is fine. When I turn of the TV in that state it freezes again.
Connecting a second PC Monitor works fine too.