1 files changed, 10 insertions, 0 deletions
diff --git a/nixos/modules/services/x11/display-managers/lightdm.nix b/nixos/modules/services/x11/display-managers/lightdm.nix
index 6a7b810261da..10242cefc7bb 100644
--- a/nixos/modules/services/x11/display-managers/lightdm.nix
+++ b/nixos/modules/services/x11/display-managers/lightdm.nix
@@ -69,6 +69,7 @@ let
       xserver-command = ${xserverWrapper}
       session-wrapper = ${dmcfg.session.script}
       greeter-session = ${cfg.greeter.name}
+      ${cfg.extraSeatDefaults}
     '';
 
   gtkGreeterConf = writeText "lightdm-gtk-greeter.conf"
@@ -109,6 +110,15 @@ in
         '';
       };
 
+      extraSeatDefaults = mkOption {
+        type = types.lines;
+        default = "";
+        example = ''
+          greeter-show-manual-login=true
+        '';
+        description = "Extra lines to append to SeatDefaults section.";
+      };
+
     };
   };