I have installed Nvidia (Geforce 940MX) Graphics driver version 384.111 from Softwares & Updates > Additional Drivers.
When I open "Nvidia X Server settings" it shows empty. I have tried
sudo apt-get purge nvidia*
and reinstall drive manually still facing the same issue. I have tried to switch drivers and reboot the computer.
also, I switched to "Ubuntu xOrg" and reinstall the driver but no luck showing the same result like below image.
About page show as system uses Intel Graphic Card