I installed TV 14.0.12762 for linux (DEB) and I installd it to Ubuntu Desktop 18.04LTS.
When I try to connect to this machine with a Windows client I got black screen. I read somewhere to try to enable lightdm instead of gmd3. I tried this and I also disabled Wayland
Now with lightdm I can see the login screen, but after login, the screen freezes with lock screen background and stays here..
This is the only log error found:
GuiWindowCheckLin::CheckForValidGUIWindows: n(10485798) !IsViewable, m(10485798) count 1, Errorcode=11
The problem is solved if there is a phisical screen connected, without it I got black screen.
I have a very similiar problem where my remote screen is dang near impossible to use. I have generated a screen shot showing how ugly it all looks. But when I have my monitor activated, it works just fine. Kind of defeats the purpose of my remote pc to have a monitor.
Mind you, those are not duplicated windows...