@dafyre I didn't ever get back to needing this until now. How were you able to achieve this? I use Fedora 28 and the Cinnamon desktop.
Sadly, no, I haven't. From what I can tell, Fedora 28 (probably 29 too) use Wayland by default. I haven't found a way to get it working yet. I tried switching the Login Screen to use X first, but even that didn't help.
Have you tried disabling Wayland instead?
I hadn't thought about that. I'll have to do a fresh install and see how that's done, unless there's a working VNC Server package in Fedora 29...
Just edit /etc/gdm/custom.conf and uncomment WaylandEnable=false and then restart. You will have only two options GNOME and GNOME Classic.
That gets me one step closer. I can get XRDP to connect to the local VNC server, but the user has to log in (locally) first... :face_with_cold_sweat: