U4919DW, KVM from two PC DP inputs?

Hi,

I'm trying to connect two PC using DP to the U4919DW. But I'm unable to get the KVM functionality working?

PC #1 uses the U4919DW DP input and the USB 1 port. This works fine.

PC #2 uses a DP -> USB-C cable to U4919DW USB-C and the USB 2 port. The display works fine but I can't select USB 2 for the USB-C input.

Both PC unfortunately don't have a HDMI port that can run the full resolution.

Is there a way to use the KVM in this way? I don't understand why this option is disabled in the firmware.

Thanks!

Kind regards,

Bas.