I have tried all solution advices on askubuntu platform. But no way to solve that login loop issue.
When I select the latest Nvidia proprietary tested driver (nvidia-367) , ubuntu stucks on login loop.
Also I tried to erase all disk and reinstall ubuntu but no way to solve that issue.
By the way it occured after an software updater alert and I didn't read it and just accepted(that was different than software updater i think it was about drivers).
So what can be the main problem and why erase all disk and reinstall ubuntu couldn't work ?