How to install NVIDIA GTX 950M driver in Ubuntu 18.04 LTS

Question

Im using Ubuntu 18.04 LTS and GTX 950m I'm already installing GTX 950m driver, but when I check with lspci -k | grep -EA2 'VGA|3D', I see:

00:02.0 VGA compatible controller: Intel Corporation HD Graphics 530 
(rev 06)
Subsystem: ASUSTeK Computer Inc. HD Graphics 530
Kernel driver in use: i915
--
01:00.0 3D controller: NVIDIA Corporation GM107M [GeForce GTX 950M] 
(rev a2)
Subsystem: ASUSTeK Computer Inc. GM107M [GeForce GTX 950M]
Kernel driver in use: nvidia

I can see Kernel driver in use: i915, I want to change i915 to nvidia, because I think my Ubuntu use Intel Graphics (i915) although I was installed NVIDIA driver

UPDATE 1: I accessed a link, and I see my Ubuntu use NVIDIA. But I have 2 boots: Window 10 and Ubuntu 18.04. When I use Ubuntu I feel colors were not rights (it's mean colors between Ubuntu 18.04 and Window 10 it not same, color of Window 10 better than Ubuntu 18.04), and when I play a website game in Ubuntu, very lag ( my internet is good, it's no problem), so I think my VGU (FPS) very low, and to use NVIDIA play the web game, does it happen?

Answer 1

It looks liek you have hybrid graphics in your laptop. There are two video adapters Intel and Nvidia. The i915 driver is for Intel.

When you run in terminal

lspci -knn | grep -EA2 'VGA|3D'

you see both adapters (intel and nvidia).

Now follow this tutorial to pick which one you want to use https://www.linuxbabe.com/desktop-linux/switch-intel-nvidia-graphics-card-ubuntu