![]() For more information on Coolbits and its different values, you can refer to the NVIDIA documentation. ![]() Remember to adjust the Coolbits value according to your requirements. You can do this by running the following command: sudo reboot Conclusionīy following these steps, you should be able to set the Coolbits in Ubuntu 20.04 and enable manual GPU fan control. Reboot your computer for the changes to take effect. In this permission set, the owner can read and write the file, while the group and others can only read the file. This command changes the permissions of the nfig file to 2644. Run the following command in terminal: sudo chmod 2644 /etc/X11/nfig Step 3: Changing the Permissions of the Xwrapper Configuration Fileįinally, we need to change the permissions of the Xwrapper configuration file. Press Ctrl + O to save the file, then Ctrl + X to exit the editor. The needs_root_rights = yes line grants the X server root rights, which are necessary for Coolbits to function correctly. The allowed_users = anybody line allows any user to start the X server. It should look like this: # allowed_users=consoleīelow the commented line, add the following two lines: allowed_users = anybody Comment it out by adding a # at the beginning. ![]() In the file, locate the line that starts with allowed_users=. Run the following command in terminal: sudo nano /etc/X11/nfig Next, we need to edit the Xwrapper configuration file. Step 2: Editing the Xwrapper Configuration File The “Device” section should look something like this: Section "Device" Here, you need to add the line Option "Coolbits" "4". In the file, locate the “Device” section. The sudo command is used to run operations that require administrative privileges. This command uses the nano text editor to open the nf file located in the /etc/X11/ directory. Open the terminal and run the following command: sudo nano /etc/X11/nf Step 1: Editing the X Configuration Fileįirst, we need to edit the X configuration file. Prerequisitesīefore we begin, ensure you have administrative privileges on your Ubuntu 20.04 system and the NVIDIA graphics driver installed. For example, a Coolbits value of 4 enables manual GPU fan control. The value of Coolbits is a sum of its component bits in the binary numeral system. These properties include GPU clock offsets, memory transfer rate offsets, and fan speed control. Step 3: Changing the Permissions of the Xwrapper Configuration FileĬoolbits is a feature provided by NVIDIA that allows users to manipulate several advanced properties of the NVIDIA graphics driver.Step 2: Editing the Xwrapper Configuration File. ![]() Sysmon: This command does not display CPU temperature when used in WSL Share.
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