Reconnect to displayport in dockingstation only with previous standby

Hi best community,

I have a funny issue, and maybe it’s already known, or maybe not:

When I disconnect my Lenovo Thinkpad T14 AMD from the CS18 dockingstation and reconnect to it, my through displayport connected monitor keeps black. But when I previously go to standby, then reconnect to the dockingstation, and then resume from sleep everything works fine.

Can somebody say where I could post the bug and which information are needed?

Thanks and Regards