From 1ba55b468dc5a37f5c204d9de9ac374d9b0293a3 Mon Sep 17 00:00:00 2001
From: Price Hiller <price@orion-technologies.io>
Date: Sun, 11 Aug 2024 14:51:55 -0500
Subject: [PATCH] feat(hosts/orion): enable Nvidia GPU w/ PRIME

---
 hosts/orion/modules/graphical.nix |  8 -----
 hosts/orion/modules/hardware.nix  | 55 +++++++++++++++++--------------
 2 files changed, 31 insertions(+), 32 deletions(-)

diff --git a/hosts/orion/modules/graphical.nix b/hosts/orion/modules/graphical.nix
index cebc17f4..e98244f4 100644
--- a/hosts/orion/modules/graphical.nix
+++ b/hosts/orion/modules/graphical.nix
@@ -28,13 +28,5 @@
       ];
     };
   };
-  hardware.graphics = {
-    enable = true;
-    extraPackages = with pkgs; [
-      intel-media-driver
-      intel-vaapi-driver
-      libvdpau
-    ];
-  };
   services.spice-vdagentd.enable = true;
 }
diff --git a/hosts/orion/modules/hardware.nix b/hosts/orion/modules/hardware.nix
index 63be4045..669ab74b 100644
--- a/hosts/orion/modules/hardware.nix
+++ b/hosts/orion/modules/hardware.nix
@@ -1,30 +1,37 @@
 {
-  inputs,
-  lib,
   pkgs,
+  lib,
+  config,
   ...
 }:
-
 {
-  # NOTE: Disable Nvidia GPU
-  boot.extraModprobeConfig = ''
-    blacklist nouveau
-    options nouveau iwlwifi power_save=1 modeset=0
-  '';
-  services.udev.extraRules = ''
-    # Remove NVIDIA USB xHCI Host Controller devices, if present
-    ACTION=="add", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x0c0330", ATTR{power/control}="auto", ATTR{remove}="1"
-    # Remove NVIDIA USB Type-C UCSI devices, if present
-    ACTION=="add", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x0c8000", ATTR{power/control}="auto", ATTR{remove}="1"
-    # Remove NVIDIA Audio devices, if present
-    ACTION=="add", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x040300", ATTR{power/control}="auto", ATTR{remove}="1"
-    # Remove NVIDIA VGA/3D controller devices
-    ACTION=="add", SUBSYSTEM=="pci", ATTR{vendor}=="0x10de", ATTR{class}=="0x03[0-9]*", ATTR{power/control}="auto", ATTR{remove}="1"
-  '';
-  boot.blacklistedKernelModules = [
-    "nouveau"
-    "nvidia"
-    "nvidia_drm"
-    "nvidia_modeset"
-  ];
+  services.xserver.videoDrivers = [ "nvidia" ];
+  environment.variables.VDPAU_DRIVER = "va_gl";
+  hardware = {
+    enableRedistributableFirmware = true;
+    graphics = {
+      enable = true;
+      extraPackages = with pkgs; [
+        vpl-gpu-rt
+        intel-media-driver
+        intel-vaapi-driver
+        libvdpau-va-gl
+        nvidia-vaapi-driver
+      ];
+      extraPackages32 = with pkgs.driversi686Linux; [ intel-vaapi-driver ];
+    };
+    nvidia = {
+      nvidiaSettings = true;
+      package = config.boot.kernelPackages.nvidiaPackages.beta;
+      powerManagement.enable = true;
+      prime = {
+        offload = {
+          enable = true;
+          enableOffloadCmd = true;
+        };
+        nvidiaBusId = "PCI:1:0:0";
+        intelBusId = "PCI:0:2:0";
+      };
+    };
+  };
 }