Isse Nur's questions

Here is the output from psensor temp monitor. So can someone please help me identify my gpu temp?

Specifications: Intel® Core i7-7700HQ NVIDIA GTX 1060 OS-Type: 64-bit

Laptop: Acer Predator with Ubuntu 18.04 LTS and Windows 10 (dual boot)
Specifications: Intel® Core i7-7700HQ NVIDIA GTX 1060 OS-Type: 64-bit

Everything is working fine so far, except that I can't switch to the NVIDIA graphics card in Ubuntu. Please help me, this is the first time that I have installed a Linux distribution on my PC.
I was following the installation tutorial from this website, I can't get it to work.

I have tried to install the NVIDIA drivers from the Ubuntu repositories and from the GPU Drivers PPA.
I have read many threads and tried to follow the suggestions. But same results, nothing is working. Below is a detailed step by step of the last commands I ran in the order they were executed.

1. Purge everything NVIDIA:

   sudo apt purge nvidia-*  
   

2. Purge the PPA:

   sudo ppa-purge ppa:graphics-drivers/ppa    
   

3. Autoremove:

   sudo apt autoremove
   

4. Clean up:

   sudo apt auto-clean
   

5. Blacklist Nouveau:

   Edited the file /etc/modprobe.d/disable-nouveau.conf and added these lines:

   blacklist nouveau
   blacklist vga16fb
   blacklist rivafb
   blacklist nvidiafb
   blacklist rivatv
   blacklist amd76_edac
   alias nouveau off
   alias lbm-nouveau off
   options nouveau modeset=0
   

6. Re-add the PPA:

   sudo add-apt-repository ppa:graphics-drivers/ppa
   

7. Check for recommended drivers:

   ubuntu-drivers devices
   

8. Install the recommended driver from the PPA:

   sudo apt install nvidia-driver-396
   

9. Reboot the system:

   sudo reboot
   

10. Check which drivers are in use:

    $ lspci -k | grep -EA2 'VGA|3D'
    00:02.0 VGA compatible controller: Intel Corporation Device 591b (rev 04)
        Subsystem: Acer Incorporated [ALI] Device 118a
        Kernel driver in use: i915
    --
    01:00.0 VGA compatible controller: NVIDIA Corporation GP106M [GeForce GTX 1060 Mobile] (rev a1)
        Subsystem: Acer Incorporated [ALI] GP106M [GeForce GTX 1060 Mobile]
        Kernel driver in use: nouveau
    
    $ lspci -nnk | grep -i vga -A3
    00:02.0 VGA compatible controller [0300]: Intel Corporation Device [8086:591b] (rev 04)
        Subsystem: Acer Incorporated [ALI] Device [1025:118a]
        Kernel driver in use: i915
        Kernel modules: i915
    --
    01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP106M [GeForce GTX 1060 Mobile] [10de:1c20] (rev a1)
        Subsystem: Acer Incorporated [ALI] GP106M [GeForce GTX 1060 Mobile] [1025:118b]
        Kernel driver in use: nouveau
        Kernel modules: nvidiafb, nouveau, nvidia_drm, nvidia
    
    $ nvidia-smi
    NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver.  
    Make sure that the latest NVIDIA driver is installed and running.
    
    $ nvidia-settings
     ERROR: NVIDIA driver is not loaded   
     ERROR: Unable to load info from any available system