From cd21ca8e9894f7d8dbe7628952c6345174c3eb15 Mon Sep 17 00:00:00 2001
From: Seth Flynn <getchoo@tuta.io>
Date: Mon, 10 Feb 2025 14:28:12 -0500
Subject: nixos/nvidia: don't use gsp firmware on proprietary driver

---
 modules/nixos/mixins/nvidia.nix | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'modules/nixos/mixins/nvidia.nix')

diff --git a/modules/nixos/mixins/nvidia.nix b/modules/nixos/mixins/nvidia.nix
index 97a8f2e..ff81385 100644
--- a/modules/nixos/mixins/nvidia.nix
+++ b/modules/nixos/mixins/nvidia.nix
@@ -3,6 +3,8 @@
 let
   cfg = config.hardware.nvidia;
 
+  isNvidiaEnabled = lib.elem "nvidia" config.services.xserver.videoDrivers;
+
   # Unlike Nixpkgs, I know all of my GPUs should prefer the open modules after 560
   useOpenModulesByDefault = lib.versionAtLeast config.hardware.nvidia.package.version "560";
 in
@@ -21,6 +23,14 @@ in
       };
     }
 
+    (lib.mkIf (isNvidiaEnabled && !config.hardware.nvidia.open) {
+      # Don't use GSP Firmware on proprietary driver
+      # https://github.com/NVIDIA/open-gpu-kernel-modules/issues/693
+      boot.kernelParams = [
+        "nvidia.NVreg_EnableGpuFirmware=0"
+      ];
+    })
+
     (lib.mkIf cfg.nvk.enable {
       specialisation = {
         nvk.configuration = {
-- 
cgit v1.2.3