A simple script to control nvidia GPU fan speed in Linux.

(No GUI Required,just need SSH)(Support Multiple GPUs and GPU index validation)(Perhaps the simplest)

Fan curve points Graph

Quick Start

Set up Environment

python3 -m venv fan

Activate Environment

source fan/bin/activate

Install pynvml

pip3 install pynvml

Get python file

wget https://raw.githubusercontent.com/RoversX/nvidia_fan_control_linux/main/nvidia_fan_control.py

Return to the previous directory maybe

cd ``

Create fan.sh for simple use

nano fan.sh

Copy script into the file

#!/bin/bash

# Use sudo to elevate privileges and activate the virtual environment
sudo bash <<EOF
source /home/x/Workspace/fan/bin/activate
python /home/x/Workspace/fan/nvidia_fan_control.py
deactivate
EOF

Start fan control

./fan.sh

Requirements

NVIDIA's driver 🤗

Version 1

Enhanced Points

A more user-friendly UI has been added to the original version to facilitate user adjustment.

Example Output

x@x:~$ ./fan.sh
[sudo] password for x: 
============================================================
Driver Version: 535.183.01
GPU 0: NVIDIA GeForce RTX 2080 Ti
Fan Count: 1
============================================================
Temperature: 42°C
Total Curve Point: 4
Current Curve Point: 2
Previous_Curve_Point: 1
Fan_Speed: 45%
============================================================
Temperature_Delta: 17
Fan_Speed_Delta: 40
Temperature_Increment: 2
Fan_Speed_Increment: 4.705882352941177
Previous_Temperature: 42°C
Step_Down_Temperature: 37
============================================================

If you want to draw fan speed curve

import matplotlib.pyplot as plt

# Fan Curve Parameters
temperature_points = [0, 40, 57, 70]
fan_speed_points = [30, 40, 80, 100]

# Draw curve
plt.figure(figsize=(8, 6))
plt.plot(temperature_points, fan_speed_points, marker='o', linestyle='-', color='b', markersize=8)
plt.title('Fan Speed Curve')
plt.xlabel('Temperature (°C)')
plt.ylabel('Fan Speed (%)')
plt.grid(True)
plt.xticks(temperature_points)
plt.yticks(fan_speed_points)
plt.tight_layout()
plt.show()

Improved based on:

https://github.com/Cippo95/nvidia-fan-control

Reference Version

Original Source:

https://gist.github.com/AlexKordic/65f031b708177a01a002cc19f0d7298c

Example Output

:~$ ./fan.sh
Driver Version: 535.183.01
0:NVIDIA GeForce RTX 2080 Ti fans=1 27-100
0:NVIDIA GeForce RTX 2080 Ti t=36 27 >> 40
0:NVIDIA GeForce RTX 2080 Ti t=36 43 >> 40
0:NVIDIA GeForce RTX 2080 Ti t=36 41 >> 40
0:NVIDIA GeForce RTX 2080 Ti t=36 39 >> 40
0:NVIDIA GeForce RTX 2080 Ti t=35 40 >> 37
0:NVIDIA GeForce RTX 2080 Ti t=35 36 >> 37
0:NVIDIA GeForce RTX 2080 Ti t=34 37 >> 35

An interesting resource: https://askubuntu.com/questions/42494/how-can-i-change-the-nvidia-gpu-fan-speed