NVIDIA driver on UBUNTU?

Question

ubuntu

Hello everyone, I have an Inspiron 3542 laptop, on it the bottom of the video card
is 1 - discrete
2 - NVIDIA GT820
I have recently become a Windows hater)))
And that's why I use Linux, it costs UBUNTU 15.04
everything suits, but I can't install the driver on the video card,
so as after installation, the system does not boot, more precisely, it starts to reboot endlessly, not really booting, I tried to install 2 times and both had to reinstall the entire system.
Who knows how to safely install firewood ???

Answer 1

You have NVidia Optimus, the solution is Bumblebee. Google for "ubuntu installing bumblebee", the first link will work

Answer 2

nvidia-current from reps.

Answer 3

I'll leave a link. Maybe that solution will help.
compizomania.blogspot.com/2015/08/ubuntu-c-nvidia.html