Black screen after install of nvidia driver ubuntu

[fbcanyagmur]

Guys can you help me with this ?

ERROR After downloading latest NVIDIA Driver Blank Screen/Not able to display GUI problem. Geforce GTX 1660Ti Dual Boot with Windows /Ubuntu 18.04.5

Everything is started with trying to upgrade NVIDIA driver to the latest version in Ubuntu 18.04.5 Desktop. After purging all nvidia related packages/files, I tried to download the necessary driver with several ways including .run file from the NVIDIA drivers’ website, Software & Updates and from the terminal(apt-get install nvidia-driver-xxxx). However, in every combination, I faced with the same issue. I couldn’t manage to boot into gui and stucked at black screen with OK messages. However, If…