As stated in the title, 19.10 is installed and runs well on my Thinkpad X1 Extreme Gen 2 notebook PC. However, I can't get external displays to work through my Thunderbolt 3 docking station.
My mouse and keyboard connected to the docking station both work, and Ubuntu sees both external monitors connected through the docking station (they are listed under devices and I can attempt to use them). However, even though I have used boltctl to confirm the Thunderbolt dock is enrolled and authorized, the displays don't work.
I saw something somewhere that stated that enabling "BIOS Assist Mode" might help, however I am unable to change that setting in the BIOS (perhaps because Windows is controlling it).
Does anyone have any additional ideas?
Docking station model: ThinkPad Thunderbolt 3 Workstation Dock/Thunderbolt 3 Dock Gen 2 - Type 40AN
Additional troubleshooting: I do not have a Thunderbolt to Display Port cable to test with, however HDMI directly into the laptop works fine. Attempting to use HDMI from the Thunderbolt dock does not work.