From d2e141e412ddd26c65fc6d65f8c0266c91e34385 Mon Sep 17 00:00:00 2001
From: Jan Tojnar <jtojnar@gmail.com>
Date: Sun, 21 Mar 2021 07:02:56 +0100
Subject: [PATCH] =?UTF-8?q?gnome3.gdm:=203.38.2.1=20=E2=86=92=2040.0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../modules/services/x11/display-managers/gdm.nix |  8 ++++----
 pkgs/desktops/gnome-3/core/gdm/default.nix        | 15 +++++++++------
 2 files changed, 13 insertions(+), 10 deletions(-)

diff --git a/nixos/modules/services/x11/display-managers/gdm.nix b/nixos/modules/services/x11/display-managers/gdm.nix
index f79eb64b5a6..a214e91cfd3 100644
--- a/nixos/modules/services/x11/display-managers/gdm.nix
+++ b/nixos/modules/services/x11/display-managers/gdm.nix
@@ -218,14 +218,14 @@ in
     # We duplicate upstream's udev rules manually to make wayland with nvidia configurable
     services.udev.extraRules = ''
       # disable Wayland on Cirrus chipsets
-      ATTR{vendor}=="0x1013", ATTR{device}=="0x00b8", ATTR{subsystem_vendor}=="0x1af4", ATTR{subsystem_device}=="0x1100", RUN+="${gdm}/libexec/gdm-disable-wayland"
+      ATTR{vendor}=="0x1013", ATTR{device}=="0x00b8", ATTR{subsystem_vendor}=="0x1af4", ATTR{subsystem_device}=="0x1100", RUN+="${gdm}/libexec/gdm-runtime-config set daemon WaylandEnable false"
       # disable Wayland on Hi1710 chipsets
-      ATTR{vendor}=="0x19e5", ATTR{device}=="0x1711", RUN+="${gdm}/libexec/gdm-disable-wayland"
+      ATTR{vendor}=="0x19e5", ATTR{device}=="0x1711", RUN+="${gdm}/libexec/gdm-runtime-config set daemon WaylandEnable false"
       ${optionalString (!cfg.gdm.nvidiaWayland) ''
-        DRIVER=="nvidia", RUN+="${gdm}/libexec/gdm-disable-wayland"
+        DRIVER=="nvidia", RUN+="${gdm}/libexec/gdm-runtime-config set daemon WaylandEnable false"
       ''}
       # disable Wayland when modesetting is disabled
-      IMPORT{cmdline}="nomodeset", RUN+="${gdm}/libexec/gdm-disable-wayland"
+      IMPORT{cmdline}="nomodeset", RUN+="${gdm}/libexec/gdm-runtime-config set daemon WaylandEnable false"
     '';
 
     systemd.user.services.dbus.wantedBy = [ "default.target" ];
diff --git a/pkgs/desktops/gnome-3/core/gdm/default.nix b/pkgs/desktops/gnome-3/core/gdm/default.nix
index 324ab865b11..6c1db6cebd9 100644
--- a/pkgs/desktops/gnome-3/core/gdm/default.nix
+++ b/pkgs/desktops/gnome-3/core/gdm/default.nix
@@ -42,13 +42,13 @@ in
 
 stdenv.mkDerivation rec {
   pname = "gdm";
-  version = "3.38.2.1";
+  version = "40.0";
 
   outputs = [ "out" "dev" ];
 
   src = fetchurl {
-    url = "mirror://gnome/sources/gdm/${lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
-    sha256 = "yliiBdXr/L2rVqEXFriY4Wrl3/Ia7nnQdgRkRGKOxNo=";
+    url = "mirror://gnome/sources/gdm/${lib.versions.major version}/${pname}-${version}.tar.xz";
+    sha256 = "XtdLc506Iy/7HkoTK8+WW9/pVdmVtSh3NYh3WwLylQ4=";
   };
 
   mesonFlags = [
@@ -90,10 +90,13 @@ stdenv.mkDerivation rec {
   ];
 
   patches = [
-    # https://gitlab.gnome.org/GNOME/gdm/-/merge_requests/112
+    # GDM fails to find g-s with the following error in the journal.
+    # gdm-x-session[976]: dbus-run-session: failed to exec 'gnome-session': No such file or directory
+    # https://gitlab.gnome.org/GNOME/gdm/-/merge_requests/92
     (fetchpatch {
-      url = "https://gitlab.gnome.org/GNOME/gdm/-/commit/1d28d4b3568381b8590d2235737b924aefd1746c.patch";
-      sha256 = "ZUXKZS4T0o0hzrApxaqcR0txCRv5zBgqeQ9K9fLNX1o=";
+      url = "https://gitlab.gnome.org/GNOME/gdm/-/commit/ccecd9c975d04da80db4cd547b67a1a94fa83292.patch";
+      sha256 = "5hKS9wjjhuSAYwXct5vS0dPbmPRIINJoLC0Zm1naz6Q=";
+      revert = true;
     })
 
     # Change hardcoded paths to nix store paths.