My setup is as follows:
My 2018, 15" MacBook Pro running 12.4 is plugged into a
DK30C2DPPD dock, which is using two display port cables. Those display port cables go into a
KVM switch. The second computer connected to the KVM switch is a Windows desktop and it works fine.
The interesting part is that on the Macbook, the DisplayLink software shows that both monitors are detected and I'm able to move applications to the monitor, but the monitor itself does not turn on/remains dark.
First monitor is a dell S2716DG, while the second monitor is a
Gigabyte M27Q.