After a successful installation of NVIDIA Graphics Driver 390.48 (all step for example blacklist nouveau and close the service of lightdm I have all already done), then I test whether NVIDIA Driver work properly, I input
nvidia-settings. However the result is weird,
nvidia-smi works properly, it print the info of my driver on screen, however
nvidia-settings give a message that it can not connect to NVIDIA driver.
And when I enable the lightdm service and reboot. The screen become blank except a cursor in the left up corner of the screen.
I wonder if Ubuntu 18.04 LTS does not support the latest version of NVIDIA Driver.
Is that true? If that is true, what is the latest version that Ubuntu 18.04 LTS support. If that is false, what can I do?
I'm sorry that I can not upload a screenshot because without the lightdm service, it is impossible for me to make a screenshot.