From 2c70504c433fcc2450b63fc46740a6f455a2aeea Mon Sep 17 00:00:00 2001
From: John Ogle <john@ogle.fyi>
Date: Sun, 4 Jan 2026 12:03:10 -0800
Subject: [PATCH] Use direct hibernate on nix-book lid close

S3 deep sleep is broken on 12th Gen Intel Alder Lake. Switch from
suspend-then-hibernate to direct hibernate on all lid close events.
---
 machines/nix-book/configuration.nix | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/machines/nix-book/configuration.nix b/machines/nix-book/configuration.nix
index dd07c54..7a8c5f3 100644
--- a/machines/nix-book/configuration.nix
+++ b/machines/nix-book/configuration.nix
@@ -40,15 +40,14 @@
 
   boot.initrd.luks.devices."luks-b614167b-9045-4234-a441-ac6f60a96d81".device = "/dev/disk/by-uuid/b614167b-9045-4234-a441-ac6f60a96d81";
 
+  # S3 deep sleep broken on Alder Lake - use direct hibernate on lid close
   services.logind.settings.Login = {
-    HandleLidSwitch = "suspend-then-hibernate";
+    HandleLidSwitch = "hibernate";
+    HandleLidSwitchExternalPower = "hibernate";
+    HandleLidSwitchDocked = "hibernate";
     HandlePowerKey = "hibernate";
     HandlePowerKeyLongPress = "poweroff";
   };
-  systemd.sleep.extraConfig = ''
-    HibernateDelaySec=30m
-    SuspendState=mem
-  '';
 
   networking.hostName = "nix-book"; # Define your hostname.
   # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.