From 55c0f5ceccda751879fb4ec01f89e9f5c17cbde5 Mon Sep 17 00:00:00 2001
From: ediblerope <fredrik@nordhammer.it>
Date: Sun, 11 Jan 2026 23:05:31 +0000
Subject: [PATCH] Update gdm-monitor.nix

---
 settings/gdm-monitor.nix | 91 +++++++++++++++++++++++-----------------
 1 file changed, 53 insertions(+), 38 deletions(-)

diff --git a/settings/gdm-monitor.nix b/settings/gdm-monitor.nix
index 4560a30..aea2c52 100644
--- a/settings/gdm-monitor.nix
+++ b/settings/gdm-monitor.nix
@@ -1,44 +1,59 @@
 # settings/gdm-monitor-sync.nix
 { config, pkgs, lib, ... }:
-
 {
   # Copy monitors.xml to GDM's config directory to prevent display mode changes during login
   # This eliminates the black screen/signal loss when transitioning from GDM to user session
-config = lib.mkIf (config.networking.hostName == "FredOS-Gaming") {  
-  environment.etc."gdm-monitors.xml" = {
-    source = pkgs.writeText "monitors.xml" ''
-      <monitors version="2">
-        <configuration>
-          <layoutmode>physical</layoutmode>
-          <logicalmonitor>
-            <x>0</x>
-            <y>0</y>
-            <scale>1</scale>
-            <primary>yes</primary>
-            <monitor>
-              <monitorspec>
-                <connector>DP-3</connector>
-                <vendor>GBT</vendor>
-                <product>G34WQCP</product>
-                <serial>25272B000088</serial>
-              </monitorspec>
-              <mode>
-                <width>3440</width>
-                <height>1440</height>
-                <rate>190.000</rate>
-              </mode>
-            </monitor>
-          </logicalmonitor>
-        </configuration>
-      </monitors>
-    '';
-    target = "gdm-monitors.xml";
-  };
-
-  # Create GDM config directory and symlink the monitors.xml file
-  systemd.tmpfiles.rules = [
-    "d /var/lib/gdm/.config 0711 gdm gdm"
-    "L+ /var/lib/gdm/.config/monitors.xml - - - - /etc/gdm-monitors.xml"
-  ];
-};
+  config = lib.mkIf (config.networking.hostName == "FredOS-Gaming") {  
+    # Copy monitors.xml to GDM's config directory
+    environment.etc."gdm-monitors.xml" = {
+      source = pkgs.writeText "monitors.xml" ''
+        <monitors version="2">
+          <configuration>
+            <layoutmode>physical</layoutmode>
+            <logicalmonitor>
+              <x>0</x>
+              <y>0</y>
+              <scale>1</scale>
+              <primary>yes</primary>
+              <monitor>
+                <monitorspec>
+                  <connector>DP-3</connector>
+                  <vendor>GBT</vendor>
+                  <product>G34WQCP</product>
+                  <serial>25272B000088</serial>
+                </monitorspec>
+                <mode>
+                  <width>3440</width>
+                  <height>1440</height>
+                  <rate>190.000</rate>
+                </mode>
+              </monitor>
+            </logicalmonitor>
+          </configuration>
+        </monitors>
+      '';
+      target = "gdm-monitors.xml";
+    };
+    
+    systemd.tmpfiles.rules = [
+      "d /var/lib/gdm/.config 0711 gdm gdm"
+      "L+ /var/lib/gdm/.config/monitors.xml - - - - /etc/gdm-monitors.xml"
+    ];
+    
+    # Log what GDM is actually using
+    systemd.services.gdm-display-check = {
+      description = "Log GDM display settings";
+      wantedBy = [ "gdm.service" ];
+      after = [ "gdm.service" ];
+      serviceConfig = {
+        Type = "oneshot";
+        ExecStart = "${pkgs.writeShellScript "check-gdm-display" ''
+          sleep 5
+          DISPLAY=:1024 ${pkgs.xorg.xrandr}/bin/xrandr > /tmp/gdm-display-info.txt 2>&1 || true
+          echo "=== GDM monitors.xml ===" >> /tmp/gdm-display-info.txt
+          cat /var/lib/gdm/.config/monitors.xml >> /tmp/gdm-display-info.txt 2>&1 || true
+        ''}";
+      };
+    };
+  }; # <-- This was missing
 }