Firstly, thank you to the Mint team for this Unity alternative.
When running x11vnc server (or Vino) from Cinnamon, we can connect from another machine (Mint/Mate, Lynx) using Vinagre (or Remmina). I see the confirmation on the server. At the machine making the connection, we see a black screen.
Logging out the server then logging in again using a Gnome fallback session (no graphics) works fine. Also, when running x11vnc on a Mate machine, vnc connections to the Mate server work fine.
I sense that there is an ongoing bug with vnc with Cinnamon, presumably having to do with the underly Gnome 3 base. Googling this gives many hits, but a lot of Idonos and dead ends.
We need to be able to access the user's "as he/she sees it" desktop (no tightvnc for us). We would like to have our users use the Cinnamon flavor if they want.