bla

2025-06-06 01:36:55 +02:00
parent 7d07de663d
commit ce387ab5db
6 changed files with 274 additions and 97 deletions
--- a/modules/nixos/hardware/graphics-nvidia-specializations/default.nix
+++ b/modules/nixos/hardware/graphics-nvidia-specializations/default.nix
@@ -0,0 +1,149 @@
+{ config, lib, pkgs, modulesPath, ... }:
+let
+  inherit (lib) mkEnableOption mkIf;
+  inherit (lib.my-namespace) disabled enabled;
+  cfg = config.my-namespace.hardware.graphics-nvidia-specializations;
+in
+{
+  options.my-namespace.hardware.graphics-nvidia-specializations = {
+    enable = mkEnableOption "Enable nvidia";
+  };
+  options.nvidia-sync.enable = lib.mkEnableOption "Enable NVIDIA prime sync mode";
+  options.nvidia-offload.enable = lib.mkEnableOption "Enable NVIDIA prime sync mode";
+
+  config = {
+    specialisation."NVIDIA-SYNC".configuration = {
+      system.nixos.tags = [ "with-nvidia-sync" ];
+      nvidia-sync.enable = true;
+    };
+
+    specialisation."NVIDIA-OFFLOAD".configuration = {
+      system.nixos.tags = [ "with-nvidia-offload" ];
+      nvidia-offload.enable = true;
+    };
+
+    services.xserver.videoDrivers = [ "nvidia" "amdgpu" ];
+    hardware.graphics = {
+      extraPackages = with pkgs; [ nvidia-vaapi-driver ];
+    };
+    boot.kernelParams = [ 
+      "nvidia.NVreg_PreserveVideoMemoryAllocations=1"
+      "nvidia-drm.fbdev=1"
+      "nvidia-drm.modeset=1"
+      "amdgpu.modeset=0"
+    ];
+    boot.initrd.kernelModules = [
+      # "amdgpu"
+      "nvidia"
+      "nvidia-drm"
+      "nvidiafb"
+      # "nvidia-uvm"
+      # "nvidia-modeset"
+      # "i2c-nvidia_gpu"    
+    ];
+
+    hardware.nvidia = {
+      modesetting.enable = true;
+
+      # Nvidia power management. Experimental, and can cause sleep/suspend to fail.
+      powerManagement.enable = config.nvidia-offload.enable;
+      # Fine-grained power management. Turns off GPU when not in use.
+      # Experimental and only works on modern Nvidia GPUs (Turing or newer).
+      powerManagement.finegrained = false;
+
+      # 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+
+      # Currently alpha-quality/buggy, so false is currently the recommended setting.
+      open = false;
+
+      # 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.beta;
+      package = config.boot.kernelPackages.nvidiaPackages.production;
+
+      prime = {
+        amdgpuBusId = "PCI:50:0:0";
+        nvidiaBusId = "PCI:1:0:0";
+      } // lib.optionalAttrs config.nvidia-sync.enable {
+        sync.enable = true;
+      } // lib.optionalAttrs (config.nvidia-offload.enable) {
+        offload = {
+          enable = true;
+          enableOffloadCmd = true;
+        };
+      };
+    };
+    services.xserver.config = lib.mkAfter ''
+      Section "ServerLayout"
+        Identifier "layout"
+        Screen 0 "amdgpu"
+        Inactive "nvidia"
+        Option "AllowNVIDIAGPUScreens"
+        Option "AllowEmptyInitialConfiguration" "True"
+      EndSection
+
+      Section "Device"
+        Identifier "nvidia"
+        Driver "nvidia"
+        BusID "PCI:01:0:0"
+        Option "AllowEmptyInitialConfiguration" "True"
+      EndSection
+
+      Section "Screen"
+        Identifier "nvidia"
+        Device "nvidia"
+        Option "AllowEmptyInitialConfiguration" "True"
+      EndSection
+
+      Section "Device"
+        Identifier "amdgpu"
+        Driver "amdgpu"
+        BusID "PCI:50:0:0"
+        Option "AllowEmptyInitialConfiguration" "True"
+      EndSection
+
+      Section "Screen"
+        Identifier "amdgpu"
+        Device "amdgpu"
+        Option "AllowEmptyInitialConfiguration" "True"
+      EndSection
+    '';
+    # services.xserver.config = lib.mkForce ''
+    #   Section "ServerLayout"
+    #     Identifier "layout"
+    #     Screen 0 "amdgpu"
+    #     Inactive "nvidia"
+    #     Option "AllowNVIDIAGPUScreens"
+    #   EndSection
+
+    #   Section "Device"
+    #     Identifier "nvidia"
+    #     Driver "nvidia"
+    #     BusID "PCI:01:0:0"
+    #   EndSection
+
+    #   Section "Screen"
+    #     Identifier "nvidia"
+    #     Device "nvidia"
+    #   EndSection
+
+    #   Section "Device"
+    #     Identifier "amdgpu"
+    #     Driver "amdgpu"
+    #     BusID "PCI:50:0:0"
+    #   EndSection
+
+    #   Section "Screen"
+    #     Identifier "amdgpu"
+    #     Device "amdgpu"
+    #   EndSection
+    # '';
+  };
+}