From 81b615ea51cd734222bffd6aa249dd82fd13a474 Mon Sep 17 00:00:00 2001
From: Nick Cao <nickcao@nichi.co>
Date: Sat, 3 Sep 2022 19:38:23 +0800
Subject: [PATCH] nixos/nvidia: replace IFD based assertion on power management
 support with version constraint

---
 nixos/modules/hardware/video/nvidia.nix | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/nixos/modules/hardware/video/nvidia.nix b/nixos/modules/hardware/video/nvidia.nix
index c51f9c0b214b..25cab0611975 100644
--- a/nixos/modules/hardware/video/nvidia.nix
+++ b/nixos/modules/hardware/video/nvidia.nix
@@ -233,11 +233,8 @@ in
       }
 
       {
-        assertion = cfg.powerManagement.enable -> (
-          builtins.pathExists (cfg.package.out + "/bin/nvidia-sleep.sh") &&
-          builtins.pathExists (cfg.package.out + "/lib/systemd/system-sleep/nvidia")
-        );
-        message = "Required files for driver based power management don't exist.";
+        assertion = cfg.powerManagement.enable -> versionAtLeast nvidia_x11.version "430.09";
+        message = "Required files for driver based power management only exist on versions >= 430.09.";
       }
 
       {