Did you try installing the nvidia driver? Please try: sudo apt install nvidia-driver-390 and then reboot.
If you still have problems after that then please also run: dpkg -l > dpkgl.txt and send us the resulting dpkgl.txt file. ** Package changed: xorg (Ubuntu) => ubuntu ** Changed in: ubuntu Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1785363 Title: Error in Booting To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1785363/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp