Blackmagic eGPU Pro + LG Ultra 5k + Ubuntu

Hi folks! I'm trying to get the following to play nicely together:
* eGPU Pro
* LG Ultrafine 5k
* Ubuntu
I think the eGPU is working, but I can't seem to get the display working.
I rebooted ubuntu with the eGPU attached, and ubuntu seemed to recognize both the eGPU and the display just fine via T3

But in my display settings, I don't see anything about my ultrafine display:

Any ideas?
* eGPU Pro
* LG Ultrafine 5k
* Ubuntu
I think the eGPU is working, but I can't seem to get the display working.
I rebooted ubuntu with the eGPU attached, and ubuntu seemed to recognize both the eGPU and the display just fine via T3

But in my display settings, I don't see anything about my ultrafine display:

Any ideas?