Controlling fans and undervolting in Acer Nitro 5 with Ubuntu

I installed Ubuntu on my Acer Nitro 5 || 8GB DDR4 || 1TB NVME SSD || i5-9300H || 4GB GTX 1650 laptop, replacing Windows.

Switching to Linux I think there are many features that I am unable to use like controlling fans and undervolting as in Windows; so is there any way by which I can get access to such features?

Paraphrased and abridged, from How to undervolt Intel i-series CPU in Linux:

1. Install pip

   sudo apt install python3-pip
   

   Check with

   pip3 --version
   

   Expected output

   pip 20.0.2 from /usr/lib/python3/dist-packages/pip (python 3.8)
   

2. Install undervolt package

   sudo pip3 install undervolt
   

   Check with

   pip3 show undervolt
   

   Expected output

   Name: undervolt
   Version: 0.3.0
   Summary: Undervolt Intel CPUs under Linux
   Home-page: http://github.com/georgewhewell/undervolt
   Author: George Whewell
   Author-email: [email protected]
   License: GPL
   Location: /home/saransh/.local/lib/python3.8/site-packages
   Requires: 
   Required-by:
   

3. Add Python installed package path to PATH environment variable

   sudo nano /etc/environment
   

   Append :home/<user>/.local/bin to PATH

   Source new enviroment

   source /etc/environment
   

   Check with

   echo $PATH
   

   Expected output

   PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/home/saransh/.local/bin"
   

   Check with

   sudo undervolt --read
   

   Expected output

   temperature target: -5 (95C)
   core: -128.91 mV
   gpu: 0.0 mV
   cache: -128.91 mV
   uncore: 0.0 mV
   analogio: 0.0 mV
   powerlimit: 60.0W (short: 0.00244140625s - disabled) / 45.0W (long: 28.0s - enabled)
   

4. Create service to run upon boot

   cd /etc/systemd/system/
   sudo nano undervolt.service
   

   Paste in

   [Unit]
   Description=undervolt
   After=suspend.target
   After=hibernate.target
   After=hybrid-sleep.target
   
   [Service]
   Type=oneshot
   ExecStart=/usr/local/bin/undervolt -v --core -150 --cache -150 --gpu -100
   
   [Install]
   WantedBy=multi-user.target
   WantedBy=suspend.target
   WantedBy=hibernate.target
   WantedBy=hybrid-sleep.target
   

   NOTE: change --core and --cache arguments according to your CPU. Do some research about your CPU stable offset voltage, else your system will shutdown and reset to default offset voltage, i.e. 0.0 mV, or may cause damage to your system!!!

   Check with

   systemctl start undervolt.service
   systemctl enable undervolt.service
   

   Stress test CPU to find the stable offset voltage

   Install stress package to Stress test the CPU

   sudo apt install stress
   

   Run stress test

   stress -c <CPU cores> 
   

   i.e.

   stress -c 8
   

5. Stress test (again) and check CPU temperature

   Install i7z package to monitor the CPU temperature

   sudo apt install i7z
   

   Run monitor in super user session

   sudo su
   i7z
   

   Expected output

   

   Re-run stress test.

   If CPU temperature goes above 80 °C, then continue the steps below, else you have finished.

6. Disable Turbo boost

   Create start up script

   sudo nano /usr/local/sbin/no-turbo.sh
   

   Paste

   #!/bin/sh -
   cd /sys/devices/system/cpu/intel_pstate
   echo 1 > no_turbo
   

   Create a unit file to run the script on Startup

   sudo nano /etc/systemd/system/no-turbo.service
   

   Paste

   [Unit]
   Description="Disable Turbo boost"
   [Service]
   Type=simple
   ExecStart=/usr/local/sbin/no-turbo.sh
   [Install]
   WantedBy=multi-user.target
   

   Check with

   systemctl start no-turbo.service
   systemctl enable no-turbo.service
   

   Turbo boost should now be disabled.