I uninstalled the Display Link driver from my Windows 10 laptop, but I continue to get "Unsupported GPU Processing Mode" unless I disconnect the dock from the laptop and move all of the connections to the laptop. FYI, I have a variety of USB devices attached: wireless mouse receiver, smartcard reader, displayport, audio out, backup drive...
I have the same exact model Kensington dock at my office, though different devices are connected to that dock. When I attach the laptop to my dock at work then DaVinci 17 beta 2 now starts OK (same laptop). However, it wouldn't previously start without uninstalling the Displaylink driver or disconnecting the dock from the laptop, or both.
Except for DaVinci Resolve beta 2, the docks both continue to function normally with or without without the Display Link driver installed, but that's because I have usb-c on both laptops.
The only "update" for my Kensington dock seems to be the Display Link driver itself, which doesn't seem to be needed by the dock in my case.
Note that the use of my Kensington dock isn't an issue with Resolve 16.
Dock Updates:
https://customer.kensington.com/us/us/s/k39105na/sd4750p_usb_c___usb_3_0_dual_4k_hybrid_docking_station_w__135w_adapter___dp___hdmi___win_mac__k39105na_#sw