From 671c558473997afd6754f22be41232c905f356a3 Mon Sep 17 00:00:00 2001
From: Yan Lin <github@yanlincs.com>
Date: Fri, 24 Oct 2025 09:45:15 +0200
Subject: [PATCH] prevent automatic suspend

---
 hosts/nixos/thinkpad/system.nix | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/hosts/nixos/thinkpad/system.nix b/hosts/nixos/thinkpad/system.nix
index 933ebc1..4d07f98 100644
--- a/hosts/nixos/thinkpad/system.nix
+++ b/hosts/nixos/thinkpad/system.nix
@@ -121,6 +121,15 @@
     yelp      # help viewer
   ];
 
+  # Prevent automatic suspend on AC power (GNOME power settings)
+  programs.dconf.profiles.user.databases = [{
+    settings = {
+      "org/gnome/settings-daemon/plugins/power" = {
+        sleep-inactive-ac-type = "nothing";
+      };
+    };
+  }];
+
   # XDG portal for proper desktop integration
   xdg.portal = {
     enable = true;