From df307e75255bffab66bd5d298f36a8e9fde78ae2 Mon Sep 17 00:00:00 2001
From: nyxerinys <nyxerinys5@gmail.com>
Date: Thu, 8 Oct 2026 20:36:25 -0500
Subject: [PATCH] add nvidia to dionysus

---
 hosts/servers/dionysus/default.nix     |  1 +
 hosts/servers/dionysus/nvidia.nix      | 59 ++++++++++++++++++++++++++
 hosts/servers/poseidon/old/default.nix |  2 -
 hosts/servers/poseidon/old/nvidia.nix  |  2 +
 4 files changed, 62 insertions(+), 2 deletions(-)
 create mode 100644 hosts/servers/dionysus/nvidia.nix

diff --git a/hosts/servers/dionysus/default.nix b/hosts/servers/dionysus/default.nix
index ad4cee0..9d9eefd 100644
--- a/hosts/servers/dionysus/default.nix
+++ b/hosts/servers/dionysus/default.nix
@@ -3,6 +3,7 @@
 {
   imports = [
     ./hardware.nix
+    ./nvidia.nix
   ];
 
   boot.loader = {
diff --git a/hosts/servers/dionysus/nvidia.nix b/hosts/servers/dionysus/nvidia.nix
new file mode 100644
index 0000000..a9d6b45
--- /dev/null
+++ b/hosts/servers/dionysus/nvidia.nix
@@ -0,0 +1,59 @@
+{lib, config, ...}:
+
+{
+  services.xserver.videoDrivers = ["nvidia"];
+
+  boot.blacklistedKernelModules = ["nouveau"];
+
+  hardware = {
+    graphics = {
+      enable = true;
+    };
+
+    nvidia-container-toolkit.enable = true;
+
+    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 = false;
+
+      # 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+
+      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.stable;
+      # package = config.boot.kernelPackages.nvidiaPackages.mkDriver {
+      #   version = "580.105.08";
+
+      #   # Update these hashes to whatever nix tells you to,
+      #   # and set them back to `lib.fakeHash` every time you
+      #   # change the version.
+      #   sha256_64bit = "sha256-2cboGIZy8+t03QTPpp3VhHn6HQFiyMKMjRdiV2MpNHU=";
+      #   openSha256 = "sha256-FGmMt3ShQrw4q6wsk8DSvm96ie5yELoDFYinSlGZcwQ=";
+      #   settingsSha256 = "sha256-YvzWO1U3am4Nt5cQ+b5IJ23yeWx5ud1HCu1U0KoojLY=";
+
+      #   # You can leave these unspecified
+      #   sha256_aarch64 = lib.fakeHash;
+      #   persistencedSha256 = lib.fakeHash;
+      # };
+    };
+  };
+}
\ No newline at end of file
diff --git a/hosts/servers/poseidon/old/default.nix b/hosts/servers/poseidon/old/default.nix
index 951752e..186f450 100644
--- a/hosts/servers/poseidon/old/default.nix
+++ b/hosts/servers/poseidon/old/default.nix
@@ -26,8 +26,6 @@
     };
   };
 
-  boot.blacklistedKernelModules = ["nouveau"];
-
   fileSystems."/" =
     { device = "nixroot/root";
       fsType = "zfs";
diff --git a/hosts/servers/poseidon/old/nvidia.nix b/hosts/servers/poseidon/old/nvidia.nix
index 42e6fc6..e11abec 100644
--- a/hosts/servers/poseidon/old/nvidia.nix
+++ b/hosts/servers/poseidon/old/nvidia.nix
@@ -3,6 +3,8 @@
 {
   services.xserver.videoDrivers = ["nvidia"];
 
+  boot.blacklistedKernelModules = ["nouveau"];
+
   hardware = {
     graphics = {
       enable = true;