From c6071fc9d3583e4b31ec2a2ded8b80d0afb997c3 Mon Sep 17 00:00:00 2001
From: Luke Granger-Brown <hg@lukegb.com>
Date: Tue, 20 Oct 2020 01:28:09 +0000
Subject: [PATCH] 3p/nixpkgs: fix always adding nvidia-persistenced to
 environment.systemPackages

---
 third_party/nixpkgs/nixos/modules/hardware/video/nvidia.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/third_party/nixpkgs/nixos/modules/hardware/video/nvidia.nix b/third_party/nixpkgs/nixos/modules/hardware/video/nvidia.nix
index 2acb891f1a..d1cf7d05c1 100644
--- a/third_party/nixpkgs/nixos/modules/hardware/video/nvidia.nix
+++ b/third_party/nixpkgs/nixos/modules/hardware/video/nvidia.nix
@@ -235,7 +235,7 @@ in
     hardware.opengl.extraPackages32 = optional offloadCfg.enable nvidia_libs32;
 
     environment.systemPackages = [ nvidia_x11.bin nvidia_x11.settings ]
-      ++ filter (p: p != null) [ nvidia_x11.persistenced ];
+      ++ optionals nvidiaPersistencedEnabled [ nvidia_x11.persistenced ];
 
     systemd.packages = optional cfg.powerManagement.enable nvidia_x11.out;