Not being able to use evdi if not running as root is normal. (see note in
https://displaylink.github.io/evdi/q...rt/#evdi-nodes)
Not seeing any extra output from "example" is also normal - but while the application is running, it should already be possible to check `xrandr` if you see DVI-*-* connector. Also, what `xrandr --listproviders` shows.
From what monitorsim run as root logs, I think you are running in ssh session, with no DISPLAY set. Run `export DISPLAY=:0` and try again...
Edit: on another look, it complains about not being able to connect to :0, so it might be something else...
Cheers,
Michal