How to get my Nvidia MX150 working ?

Hello,
I'm completely new to Manjaro and I have issues setting my display : currently, it is set on my CPU's integrated graphics. However, I would really like being able to use my Nvidia MX150 graphic card instead.
I know this is a frequent problem, but I have read a lot of threads on this forum and on the manjaro wiki, and still, nothing seems to work for me. Could you please list all the steps I have to follow in order to get it working ?

Thank you very much for helping newbies like me !

inxi -Fxxxza --no-host
mhwd -l && mhwd -li

Hello,
Thanks for helping. Here are the results of the instructions you've asked me to enter :

inxi -Fxxxza --no-host

Graphics:
  Device-1: Intel Skylake GT2 [HD Graphics 520] vendor: Xiaomi driver: i915 
  v: kernel bus ID: 00:02.0 chip ID: 8086:1916 
  Device-2: NVIDIA GM108M [GeForce 940MX] vendor: Xiaomi driver: nvidia 
  v: 440.82 bus ID: 01:00.0 chip ID: 10de:134b 
  Display: x11 server: X.Org 1.20.8 driver: modesetting unloaded: nvidia 
  resolution: 1920x1080~60Hz 
  OpenGL: renderer: Mesa Intel HD Graphics 520 (SKL GT2) v: 4.6 Mesa 20.0.7 
  direct render: Yes 

mhwd -l && mhwd -li

0000:01:00.0 (0302:10de:134b) Display controller nVidia Corporation:
--------------------------------------------------------------------------------
                  NAME               VERSION          FREEDRIVER           TYPE
--------------------------------------------------------------------------------
video-hybrid-intel-nvidia-440xx-prime            2019.10.25               false            PCI
video-hybrid-intel-nvidia-435xx-prime            2019.10.25               false            PCI
video-hybrid-intel-nvidia-430xx-bumblebee            2019.10.25               false            PCI
video-hybrid-intel-nvidia-418xx-bumblebee            2019.10.25               false            PCI
video-hybrid-intel-nvidia-390xx-bumblebee            2019.10.25               false            PCI
    video-nvidia-440xx            2019.10.25               false            PCI
    video-nvidia-435xx            2019.10.25               false            PCI
    video-nvidia-430xx            2019.10.25               false            PCI
    video-nvidia-418xx            2019.10.25               false            PCI
    video-nvidia-390xx            2019.10.25               false            PCI
           video-linux            2018.05.04                true            PCI


> 0000:00:02.0 (0300:8086:1916) Display controller Intel Corporation:
--------------------------------------------------------------------------------
                  NAME               VERSION          FREEDRIVER           TYPE
--------------------------------------------------------------------------------
video-hybrid-intel-nvidia-440xx-prime            2019.10.25               false            PCI
video-hybrid-intel-nvidia-435xx-prime            2019.10.25               false            PCI
video-hybrid-intel-nvidia-430xx-bumblebee            2019.10.25               false            PCI
video-hybrid-intel-nvidia-418xx-bumblebee            2019.10.25               false            PCI
video-hybrid-intel-nvidia-390xx-bumblebee            2019.10.25               false            PCI
           video-linux            2018.05.04                true            PCI
     video-modesetting            2020.01.13                true            PCI
            video-vesa            2017.03.12                true            PCI


> Installed PCI configs:
--------------------------------------------------------------------------------
                  NAME               VERSION          FREEDRIVER           TYPE
--------------------------------------------------------------------------------
video-hybrid-intel-nvidia-440xx-prime            2019.10.25               false            PCI
           video-linux            2018.05.04                true            PCI


Warning: No installed USB configs!

You shared just the graphics part of inxi, but regardless.

I don't think you need that installed.
Follow this provided tutorial, and see if things get better for using the dGPU:

I agree with @bogdancovaciu, on Intel/Nvidia GPU you don't need video-linux. I don't have it and all works as it suppose to.

I have:

  1. Intel mode: desktop uses Intel modesetting but I can run nvidia on demand using novoueau driver
  2. Hybrid mode: desktop uses Intel but I can run nvidia on demand (with prime-run) using proprietary drivers
  3. Nvidia mode: everything uses Nvidia proprietary drivers

If I wanted, I could use Intel Intel drivers with few clicks, but those don't support multi-monitors, while modesetting one is of a great quality.

So all in all, I have access to Intel modesetting, Intel Intel, Nvidia noveau, Nvidia Prime - video-linux is not needed for any of this.

You really need to post the full output when someone asked for that information... We need that information because it can help us understand what your computer setup is.

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