Gpu fan controller linux

How to enable Nvidia fan control on Ubuntu 20.04. This is very easy.

Setting the GPU fan speed on Linux is very important if a user wants to participate in gaming and not have a burning smell come from their GPU. I have found a way to get this working and it is very simple.

Run this command to create a basic Xorg configuration to enable the setting we require.

┌──[jason@192.168.1.2]─[~] └──╼ ╼ $ sudo nvidia-xconfig -a --cool-bits=28 --allow-empty-initial-configuration

┌──[[email protected]]─[~] └──╼ ╼ $ sudo nvidia-xconfig -a —cool-bits=28 —allow-empty-initial-configuration

This creates a new /etc/X11/xorg.conf file that contains the required settings.

Section "Screen" Identifier "Screen0" Device "Device0" Monitor "Monitor0" DefaultDepth 24 Option "AllowEmptyInitialConfiguration" "True" Option "Coolbits" "28" SubSection "Display" Depth 24 EndSubSection EndSection

Section «Screen» Identifier «Screen0» Device «Device0» Monitor «Monitor0» DefaultDepth 24 Option «AllowEmptyInitialConfiguration» «True» Option «Coolbits» «28» SubSection «Display» Depth 24 EndSubSection EndSection

Then log out of the desktop session to GDM and then back in. Then the fan speed option should be available in Nvidia settings.

The above section of the xorg.conf has the Option «Coolbits» «28» option that will enable the Nvidia settings GUI to unlock the fan speed selection. Then set an appropriate fan speed for the GPU. 50% should be fine.

This is very simple and causes no issues. On Windows, you use MSI Afterburner to set the fan properties and monitor the temperature, but on Linux, you have Nvidia settings utility. So the ability to set the fan speed is necessary and it is very strange that this is not available unless you have configured a Xorg.conf file that is not even required anymore. But at least this setting works and allows a user to control something as simple as the speed of the GPU fan. The good thing about Linux is that there is always a good fix for a problem you encounter.

The fan speed of your Nvidia card may also be controlled with the command line. This is quick and easy to do.

┌──[jason@192.168.1.2]─[~/Documents] └──╼ ╼ $ nvidia-settings -a [fan:0]/GPUTargetFanSpeed=32 Attribute 'GPUTargetFanSpeed' (jason-desktop:1[fan:0]) assigned value 32.

┌──[[email protected]]─[~/Documents] └──╼ ╼ $ nvidia-settings -a [fan:0]/GPUTargetFanSpeed=32 Attribute ‘GPUTargetFanSpeed’ (jason-desktop:1[fan:0]) assigned value 32.

This command will return information about the GPU temperature. This is very useful to keep track of the temperature of the card whilst running intensive tasks using the GPU.

┌──[jason@192.168.1.2]─[~/Documents] └──╼ ╼ $ nvidia-smi -q -d temperature ==============NVSMI LOG============== Timestamp : Tue Dec 8 08:55:20 2020 Driver Version : 440.100 CUDA Version : 10.2 Attached GPUs : 1 GPU 00000000:04:00.0 Temperature GPU Current Temp : 31 C GPU Shutdown Temp : 102 C GPU Slowdown Temp : 99 C GPU Max Operating Temp : N/A Memory Current Temp : N/A Memory Max Operating Temp : N/A

┌──[[email protected]]─[~/Documents] └──╼ ╼ $ nvidia-smi -q -d temperature ==============NVSMI LOG============== Timestamp : Tue Dec 8 08:55:20 2020 Driver Version : 440.100 CUDA Version : 10.2 Attached GPUs : 1 GPU 00000000:04:00.0 Temperature GPU Current Temp : 31 C GPU Shutdown Temp : 102 C GPU Slowdown Temp : 99 C GPU Max Operating Temp : N/A Memory Current Temp : N/A Memory Max Operating Temp : N/A

This also shows the thermal throttling temperature and the critical shutdown temperature.

Another way to set the fan control is via the /usr/share/X11/xorg.conf.d/10-nvidia.conf file.

Section "OutputClass" Identifier "nvidia" MatchDriver "nvidia-drm" Driver "nvidia" Option "AllowEmptyInitialConfiguration" Option "Coolbits" "28" ModulePath "/usr/lib/x86_64-linux-gnu/nvidia/xorg" EndSection

Section «OutputClass» Identifier «nvidia» MatchDriver «nvidia-drm» Driver «nvidia» Option «AllowEmptyInitialConfiguration» Option «Coolbits» «28» ModulePath «/usr/lib/x86_64-linux-gnu/nvidia/xorg» EndSection

This might avoid the black screen error with Nvidia drivers as they are troublesome. Add the Option «Coolbits» «28» option here and see if this helps. On Ubuntu 20.04 with Nvidia Driver 470.63.01, you might use this instead.

Also, edit the /etc/X11/Xwrapper.config to look like this.

# Xwrapper.config (Debian X Window System server wrapper configuration file) # # This file was generated by the post-installation script of the # xserver-xorg-legacy package using values from the debconf database. # # See the Xwrapper.config(5) manual page for more information. # # This file is automatically updated on upgrades of the xserver-xorg-legacy # package *only* if it has not been modified since the last upgrade of that # package. # # If you have edited this file but would like it to be automatically updated # again, run the following command as root: # dpkg-reconfigure xserver-xorg-legacy #allowed_users=console allowed_users = anybody needs_root_rights = yes

# Xwrapper.config (Debian X Window System server wrapper configuration file) # # This file was generated by the post-installation script of the # xserver-xorg-legacy package using values from the debconf database. # # See the Xwrapper.config(5) manual page for more information. # # This file is automatically updated on upgrades of the xserver-xorg-legacy # package *only* if it has not been modified since the last upgrade of that # package. # # If you have edited this file but would like it to be automatically updated # again, run the following command as root: # dpkg-reconfigure xserver-xorg-legacy #allowed_users=console allowed_users = anybody needs_root_rights = yes

Then run this command to set the appropriate permissions.

sudo chmod 2644 /etc/X11/Xwrapper.config

sudo chmod 2644 /etc/X11/Xwrapper.config

Then reboot your Linux PC.

Another useful post. This contains a script that you may run with Startup Applications in the MATE desktop to get the fan running when you log in to your desktop.

#!/bin/bash nvidia-settings -a '[gpu:0]/GPUFanControlState=1' nvidia-settings -a '[fan]/GPUTargetFanSpeed=56'

#!/bin/bash nvidia-settings -a ‘[gpu:0]/GPUFanControlState=1’ nvidia-settings -a ‘[fan]/GPUTargetFanSpeed=56’

Add this to Startup Applications to use this script.

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Control the fan speed of NVida graphics cards based on a user-defined curve for Linux.

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README.md

Control the fan speed of NVida graphics cards based on a user-defined curve for Linux.

There is no easy way to set up a temperature-fan speed curve on your own (like MSI Afterburner for Windows). As a result, under heavy load, the video card quickly warms up to a temperature of 86C (186F) and above. This is not the best mode for long device life.

A script that will monitor the temperature of each GPU, check the curve profile and translate the fans to the desired rotation speed.

Edit the temp_profile.json in profiles

< "GPUS": [ "0": 5, "20": 15, "40": 35, "60": 75, "80": 95, "100": 100> ], "GPU_FAN_MAP": "0": 1, "1": 0> >

The key is the GPU temperature and value is the desired fan speed.

The key is the GPU number (id) and the value is the fan ID (this works for me, maybe yours will be different)

Create virtual environment:

pip install -r requirements.txt

Run as .desktop application

Edit the path to the script in FanController.desktop. Copy to desktop and change file properties to allow execution.

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Control the fan speed of NVida graphics cards based on a user-defined curve for Linux.

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