From 41428127be44a44799241f2aa7f204ee0a3fe207 Mon Sep 17 00:00:00 2001
From: Thilo Hohlt <123883702+thiloho@users.noreply.github.com>
Date: Wed, 19 Jun 2024 17:48:01 +0200
Subject: [PATCH] Scale GDM to 200% on PC

---
 nixos-configurations/pc/default.nix | 31 ++++++++++++++++++++++++++++-
 1 file changed, 30 insertions(+), 1 deletion(-)

diff --git a/nixos-configurations/pc/default.nix b/nixos-configurations/pc/default.nix
index cfe0760..777a277 100644
--- a/nixos-configurations/pc/default.nix
+++ b/nixos-configurations/pc/default.nix
@@ -1,4 +1,4 @@
-{ inputs, ... }:
+{ inputs, pkgs, ... }:
 
 {
   imports = [
@@ -26,6 +26,35 @@
   programs.adb.enable = true;
   users.users.thiloho.extraGroups = [ "adbusers" ];
 
+  # Use same monitor settings for GDM as for GNOME user
+  systemd.tmpfiles.rules = [
+    "L+ /run/gdm/.config/monitors.xml - - - - ${pkgs.writeText "gdm-monitors.xml" ''
+      <monitors version="2">
+        <configuration>
+          <logicalmonitor>
+            <x>0</x>
+            <y>0</y>
+            <scale>2</scale>
+            <primary>yes</primary>
+            <monitor>
+              <monitorspec>
+                <connector>DP-3</connector>
+                <vendor>GBT</vendor>
+                <product>M27U</product>
+                <serial>23323B000497</serial>
+              </monitorspec>
+              <mode>
+                <width>3840</width>
+                <height>2160</height>
+                <rate>160.000</rate>
+              </mode>
+            </monitor>
+          </logicalmonitor>
+        </configuration>
+      </monitors>
+    ''}"
+  ];
+
   home-manager.users.thiloho = { pkgs, lib, ... }: {
     programs.git.signing.key = "5ECD00BDC15A987E";
     home = {