This chapter of the NV driver manual details how: https://download.nvidia.com/XFree86/Linux-x86_64/460.56/README/primerenderoffload.html https://download.nvidia

This chapter of the NV driver manual details how: https://download.nvidia.com/XFree86/Linux-x86_64/460.56/README/primerenderoffload.html https://download.nvidia.com/XFree86/Linux-x86_64/460.56/READ... On Turing and later, you can also enable this: https://download.nvidia.com/XFree86/Linux-x86_64/460.56/README/dynamicpowermanagement.html https://download.nvidia.com/XFree86/Linux-x86_64/460.56/READ... to totally turn off the dGPU when not in use.