Dell XPS 13 9300 Dual 4k
I recently purchased a Dell XPS 13 9300 (2020) Developer Edition and I have 2 external 4k monitors (Dell U2718Q).I bought this hub on Amazon: https://www.amazon.com/gp/product/B07X5KSBNJ/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1. It has two HDMI ports, and from my understanding a thunderbolt 3 display signal can be split into two connections with an adapter like this. Unfortunately it only seems to support both monitors if I set the resolution to 1080p. Using just one works fine. Are dual-4k monitors possible? From my research it seems like it should be. Could this perhaps be a driver issue since I'm using Ubuntu Linux with the developer edition? I haven't touched the drivers, and I assumed this would work out-of-the-box. Do I need to use two separate cables? Does anyone have any cable setup that they know works? Thanks!