Jovan StosicAny changes you make in the NVIDIA X Server Settings utility to brightness, contrast and gamma will revert back to their original default values
after restarting your system, or even after logging out and back in. If you want the changes to remain, then you will have to manually edit the
“.nvidia-settings-rc” file. For the benefit of anyone else reading this topic, this is a hidden file located in “/home/your-user-name” and will only be available after installation of a Nvidia proprietary driver. Open the file and at the bottom add the line:
0/Gamma=0.800
The default value is 1.000 and any value below it will darken the screen. I have mine set to 0.900. This makes any text on the screen a little darker and easier for me to read.
To change the Gamma of only one color add the lines:
0/RedGamma=1.000 (whatever value you want)
0/GreenGamma=1.000
0/BlueGamma=1.000
Save the file. Unfortunately, if you ever reopen the NVIDIA X Server Settings utility, then these settings will be removed from this file and you will
have to manually add them back. This is not a problem for me since I will rarely need to use that utility but for others it may be a good idea to have a backup of that file. Some day if I have some extra time, I may work on this problem.
If this method does not work, then you will also have to add the following line to the xinitrc file located in “/etc/X11/xinit”. Right click on the file and select “Open as Root”. Open the file and add the line:
nvidia-settings –load-config-only