MAC: VNC to Ubuntu 18.04 ‘Unknown authType 18 ‘

So you enabled desktop sharing on your Linux box, you go to log in from Royal TSX or Chicken of the VNC on your Mac and you get the dreaded  “Unknown authType 18” error…Below is the quick fix!

While trying to connect using Royal TSX of the VNC I received this error:

'Unknown authType 18'

To fix this, open a terminal on your Linux box and disable the encryption:

gsettings set org.gnome.Vino require-encryption false

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