Fix Manual Fan Control Nvidia in Linux

Ubuntu 22.04

sudo vim /etc/X11/Xwrapper.config

Add these lines before allowed_users=console:
needs_root_rights=yes

Save file
Reboot

Fedora 35 Workstation

Fedora installer does not create Xwrapper.config

sudo vim /etc/X11/Xwrapper.config

Add these two lines:
needs_root_rights=yes
allowed_users=console

Save file
Reboot