From 759c57dfac99860b1adbb628c5f41609a9ef6b45 Mon Sep 17 00:00:00 2001
From: Martin Berg Alstad <git@martials.no>
Date: Sat, 11 Jan 2025 23:50:44 +0100
Subject: [PATCH] =?UTF-8?q?=F0=9F=93=BA=20Reorganized,=20changed=20hardwar?=
 =?UTF-8?q?e=20acceleration=20to=20use=20Nvidia,=20added=20Nvidia=20powerm?=
 =?UTF-8?q?anagement?=
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---
 home-manager/hyprland/settings.nix    |  7 +++----
 modules/hardware/graphics/default.nix | 13 +-----------
 modules/hardware/graphics/nvidia.nix  | 29 ++++++++++++++++++++-------
 3 files changed, 26 insertions(+), 23 deletions(-)

diff --git a/home-manager/hyprland/settings.nix b/home-manager/hyprland/settings.nix
index 3312aab..05893c0 100644
--- a/home-manager/hyprland/settings.nix
+++ b/home-manager/hyprland/settings.nix
@@ -13,16 +13,15 @@ in
 
     # Autostart
     exec-once = [
-      "${app.browser}"
-      "${app.terminal}"
+      app.browser
+      app.terminal
       "hypridle"
       "systemctl --user start hyprpolkitagent"
-      # "waybar"
       "waypaper --restore"
     ];
 
     env = [
-      "ELECTRON_OZONE_PLATFORM_HINT,auto"
+      "ELECTRON_OZONE_PLATFORM_HINT,auto" # Tell Electron apps to use Wayland
     ];
 
     general = {
diff --git a/modules/hardware/graphics/default.nix b/modules/hardware/graphics/default.nix
index 2712b6f..c2d26e4 100644
--- a/modules/hardware/graphics/default.nix
+++ b/modules/hardware/graphics/default.nix
@@ -1,19 +1,8 @@
-{ pkgs, ... }:
-
 {
   imports = [
     ./nvidia.nix
   ];
 
-  # For hardware acceleration
-  environment.sessionVariables.LIBVA_DRIVER_NAME = "iHD";
-
   # Enable OpenGL
-  hardware.graphics = {
-    enable = true;
-    extraPackages = with pkgs; [
-      # Used for hardware-acceleration
-      intel-media-driver # For Broadwell (2014) or newer processors. LIBVA_DRIVER_NAME=iHD
-    ];
-  };
+  hardware.graphics.enable = true;
 }
diff --git a/modules/hardware/graphics/nvidia.nix b/modules/hardware/graphics/nvidia.nix
index bb5c7e9..6b33ac2 100644
--- a/modules/hardware/graphics/nvidia.nix
+++ b/modules/hardware/graphics/nvidia.nix
@@ -1,11 +1,26 @@
+{ pkgs, ... }:
+
 {
-  hardware.nvidia = {
-    # Required
-    modesetting.enable = true;
-    # Use closed-source drivers
-    open = false;
-    # Enable the Nvidia settings menu
-    nvidiaSettings = true;
+  boot.kernelParams = [ "nvidia.NVreg_PreserveVideoMemoryAllocations=1" ];
+
+  # For hardware acceleration
+  environment.sessionVariables.LIBVA_DRIVER_NAME = "nvidia";
+
+  hardware = {
+    graphics.extraPackages = with pkgs; [
+      # Used for hardware-acceleration
+      nvidia-vaapi-driver
+    ];
+    nvidia = {
+      # Required
+      modesetting.enable = true;
+      # Use closed-source drivers
+      open = false;
+      # Enable the Nvidia settings menu
+      nvidiaSettings = true;
+      # Enable nvidia-suspend.service, nvidia-hibernate.service and nvidia-resume.service
+      powerManagement.enable = true;
+    };
   };
 
   # Load Nvidia driver for Xorg and Wayland