MP 7,1 27MD5KL and Bootcamp

[jaapaap79]

Does anyone know why Windows 10 through bootcamp only shows 4K as the maximum resolution for an LG 5K screen? I expected it to be the same as under MacOS as it’s using proper Thunderbolt 3.

 

[joevt]

Windows needs to be able to see two DisplayPort connections to the LG UltraFine 5K. Do other Thunderbolt devices work? Do you see the USB controller, USB hub, and USB devices (audio, camera, brightness control) of the display in the Windows Device Manager (view by connection, find the Thunderbolt bridge, find the Thunderbolt USB controller of the display)?

Did you try disconnecting and reconnecting the display?