I am attempting to change from an nVidia videocard to an AMD RX 5700 XT in a computer. I have uninstalled the nVidia driver from the Apps panel in Windows 10 (all of the entries; NV Control panel, ...
My cheap-ish Samsung (cheap for a QHD) has an HDMI and a DisplayPort input. If I hook up a laptop to each input, both laptops think the screen is on- even the one who is not currently being displayed.