Initial commit

nixos/nvidia.nix

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+{ config, lib, ... }:
+
+{
+  # Load nvidia driver for Xorg and Wayland
+  services.xserver.videoDrivers = ["nvidia"];
+
+  # Enable access to nvidia from containers (Docker, Podman)
+  hardware.nvidia-container-toolkit.enable = true;
+
+  hardware.nvidia = {
+
+    # Modesetting is required.
+    modesetting.enable = true;
+
+    # Nvidia power management. Experimental, and can cause sleep/suspend to fail.
+    # Enable this if you have graphical corruption issues or application crashes after waking
+    # up from sleep. This fixes it by saving the entire VRAM memory to /tmp/ instead
+    # of just the bare essentials.
+    powerManagement.enable = true;
+
+    # Fine-grained power management. Turns off GPU when not in use.
+    # Experimental and only works on modern Nvidia GPUs (Turing or newer).
+    powerManagement.finegrained = true;
+
+    # Dynamic Boost. It is a technology found in NVIDIA Max-Q design laptops with RTX GPUs.
+    # It intelligently and automatically shifts power between
+    # the CPU and GPU in real-time based on the workload of your game or application.
+    dynamicBoost.enable = lib.mkForce true;
+
+    # Use the NVidia open source kernel module (not to be confused with the
+    # independent third-party "nouveau" open source driver).
+    # Support is limited to the Turing and later architectures. Full list of
+    # supported GPUs is at:
+    # https://github.com/NVIDIA/open-gpu-kernel-modules#compatible-gpus
+    # Only available from driver 515.43.04+
+    open = true;
+
+    # Enable the Nvidia settings menu,
+  	# accessible via `nvidia-settings`.
+    nvidiaSettings = true;
+
+    # Optionally, you may need to select the appropriate driver version for your specific GPU.
+    package = config.boot.kernelPackages.nvidiaPackages.production;
+
+    # Nvidia Optimus PRIME. It is a technology developed by Nvidia to optimize
+    # the power consumption and performance of laptops equipped with their GPUs.
+    # It seamlessly switches between the integrated graphics,
+    # usually from Intel, for lightweight tasks to save power,
+    # and the discrete Nvidia GPU for performance-intensive tasks.
+    prime = {
+  		offload = {
+  			enable = true;
+  			enableOffloadCmd = true;
+  		};
+
+  		# FIXME: Change the following values to the correct Bus ID values for your system!
+      # More on "https://wiki.nixos.org/wiki/Nvidia#Configuring_Optimus_PRIME:_Bus_ID_Values_(Mandatory)"
+  		nvidiaBusId = "PCI:0:0:0";
+  		intelBusId = "PCI:0:0:0";
+  	};
+  };
+
+  # NixOS specialization named 'nvidia-sync'. Provides the ability
+  # to switch the Nvidia Optimus Prime profile
+  # to sync mode during the boot process, enhancing performance.
+  specialisation = {
+    nvidia-sync.configuration = {
+      system.nixos.tags = [ "nvidia-sync" ];
+      hardware.nvidia = {
+        powerManagement.finegrained = lib.mkForce false;
+
+        prime.offload.enable = lib.mkForce false;
+        prime.offload.enableOffloadCmd = lib.mkForce false;
+
+        prime.sync.enable = lib.mkForce true;
+      };
+    };
+  };
+}