@kahennig, great news, thank you! Indeed, I prefer to keep secure boot enabled, but I might give your algorithm a try, just for kicks.
Also, afaik, DisplayLink drivers come with their own EVDI. Anyway, what does this line below do?:
Code:
sudo apt install --reinstall linux-headers-$(uname -r)
Why do you need it? Would I need this in a fresh Ubuntu install, untarnished by any previous (failed) DIsplayLink driver installation?
Is it that the only thing required to get DisplayLink drivers installed is to disable secure boot?