From 9b0f62db7606ef035590b3f10882312aff47d453 Mon Sep 17 00:00:00 2001
From: Antoine Viallon <antoine@lesviallon.fr>
Date: Tue, 16 Apr 2024 19:16:38 +0200
Subject: [PATCH] [Nvidia/Proprietary] nvidia-vaapi-driver: use direct CUDA
 backend

Works more reliably (esp. under Wayland)
---
 hardware/nvidia/proprietary.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/hardware/nvidia/proprietary.nix b/hardware/nvidia/proprietary.nix
index 83051cc..3964b05 100644
--- a/hardware/nvidia/proprietary.nix
+++ b/hardware/nvidia/proprietary.nix
@@ -170,6 +170,9 @@ in {
 
       # Improves Wayland
       "GBM_BACKEND" = "nvidia-drm";
+
+      # Use direct CUDA backend for Nvidia VAAPI Driver (egl backend is broken)
+      "NVD_BACKEND" = "direct";
     };
 
     nixpkgs.overlays = [(final: prev: {