From e6f0a1e7ebceac4e25150384008f5b051aa8be03 Mon Sep 17 00:00:00 2001
From: Atemu <atemu.main@gmail.com>
Date: Sat, 22 Feb 2020 12:43:06 +0100
Subject: [PATCH] undervolt: apply undervolt on boot and resume

The undervolt did not persist reboots or sleep/hibernation. With this
change you should no longer have to apply the undervolt on a timer
---
 nixos/modules/services/hardware/undervolt.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/nixos/modules/services/hardware/undervolt.nix b/nixos/modules/services/hardware/undervolt.nix
index 828032dc573a..1f1a6d674787 100644
--- a/nixos/modules/services/hardware/undervolt.nix
+++ b/nixos/modules/services/hardware/undervolt.nix
@@ -114,6 +114,11 @@ in
       path = [ pkgs.undervolt ];
 
       description = "Intel Undervolting Service";
+
+      # Apply undervolt on boot, nixos generation switch and resume
+      wantedBy = [ "multi-user.target" "post-resume.target" ];
+      after = [ "post-resume.target" ]; # Not sure why but it won't work without this
+
       serviceConfig = {
         Type = "oneshot";
         Restart = "no";