I have an HP laptop with NVIDIA GTX 1060 discrete graphics card. I have installed the video-hybrid-intel-nvidia-prime driver. Everything seems to be working fine except NVIDIA X Server setting shows very limited options.
If I run nvidia-settings through the terminal, it returns the following message.
ERROR: nvidia-settings could not find the registry key file or the X server is not accessible. This file should have been installed along with this driver at
/usr/share/nvidia/nvidia-application-profiles-key-documentation. The application profiles will continue to work, but values cannot be prepopulated or validated, and will not be listed in the help text. Please see
the README for possible values and descriptions.