Ubuntu 18 04 modifications
From RobotinoWiki
Graphics drivers
add-apt-repository ppa:oibaf/graphics-drivers apt-get update apt-get upgrade
Mirror display
Use arandr to create screenlayout script and add it to Startup Applications Alt+F2 and run the gnome-session-properties
VNC
apt-get install x11vnc
/etc/systemd/system/x11vnc.service
[Unit] Description="x11vnc" [Service] ExecStart=/usr/bin/x11vnc -auth /run/user/1000/gdm/Xauthority -forever -loop -noxdamage -repeat -rfbport 5900 -shared Restart=on-failure [Install] WantedBy=display-manager.service
systemctl enable x11vnc.service