I bought this screen, but the integrated KVM switch does NOT recognise the mouse and keyboard when I connect via HDMI from the screen to my laptop. The image is transferred correctly, but the USB type A (mouse + keyboard plug, which is connected directly to the Samsung screen) has NO power and therefore does not work. However, if I then connect my business laptop via USB C, everything suddenly works. (Picture + mouse + keyboard). What could be the problem? I also have a USB C port on my private laptop, but when I try it that way, it doesn't even transfer the image, let alone the mouse and keyboard. The only thing that works is that the laptop charges, i.e. it gets power via USB C. Could it be that something so simple and mundane just does NOT work? Would be incredibly grateful if anyone has any tips so that I don't feel like I'm the only one with this problem again.