Integrated GPU is not (fully) used / Responsiveness issue

Developer Discussion
2

I replied to you in another topic. Follow the steps there to install the 520 driver. This is the preferred version for Optimus-based HW configuration.

Perhaps you may want Intel as the primary GPU.
See /etc/X11/xorg.conf.d/nvidia-drm-outputclass.conf
Comment the two lines and reboot.

Section "OutputClass"
    Identifier "nvidia"
    MatchDriver "nvidia-drm"
    Driver "nvidia"
    Option "AllowEmptyInitialConfiguration"
#   Option "PrimaryGPU" "yes" # This can be commented if wanted Intel as primary GPU
    Option "SLI" "Auto"
    Option "BaseMosaic" "on"
EndSection

Section "OutputClass"
    Identifier "intel"
    MatchDriver "i915"
    Driver "modesetting"
#   Option "AccelMethod" "none" # Comment when using Intel as primary
EndSection

When Intel is the main GPU, folks on the web offload some applications to the NVIDIA GPU by setting two environment variables. Then, run the application.

export __NV_PRIME_RENDER_OFFLOAD=1
export __GLX_VENDOR_LIBRARY_NAME=nvidia

I’m unable to assist further with Optimus configurations. I have a desktop system.

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