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-rw-r--r--nixos/modules/services/x11/display-managers/lightdm-greeters/pantheon.nix7
1 files changed, 7 insertions, 0 deletions
diff --git a/nixos/modules/services/x11/display-managers/lightdm-greeters/pantheon.nix b/nixos/modules/services/x11/display-managers/lightdm-greeters/pantheon.nix
index 05011b999f2..bfba174144a 100644
--- a/nixos/modules/services/x11/display-managers/lightdm-greeters/pantheon.nix
+++ b/nixos/modules/services/x11/display-managers/lightdm-greeters/pantheon.nix
@@ -33,6 +33,13 @@ in
 
   config = mkIf (ldmcfg.enable && cfg.enable) {
 
+    warnings = [
+      ''
+        The Pantheon greeter is suboptimal in NixOS and can possibly put you in
+        a situation where you cannot start a session when switching desktopManagers.
+      ''
+    ];
+
     services.xserver.displayManager.lightdm.greeters.gtk.enable = false;
 
     services.xserver.displayManager.lightdm.greeter = mkDefault {