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-rw-r--r--nixos/modules/services/x11/display-managers/sddm.nix15
1 files changed, 15 insertions, 0 deletions
diff --git a/nixos/modules/services/x11/display-managers/sddm.nix b/nixos/modules/services/x11/display-managers/sddm.nix
index 2d4cb8aa20a5..df782e82ed15 100644
--- a/nixos/modules/services/x11/display-managers/sddm.nix
+++ b/nixos/modules/services/x11/display-managers/sddm.nix
@@ -65,6 +65,10 @@ let
     XauthPath=${pkgs.xorg.xauth}/bin/xauth
     DisplayCommand=${Xsetup}
     DisplayStopCommand=${Xstop}
+    EnableHidpi=${if cfg.enableHidpi then "true" else "false"}
+
+    [Wayland]
+    EnableHidpi=${if cfg.enableHidpi then "true" else "false"}
 
     ${optionalString cfg.autoLogin.enable ''
     [Autologin]
@@ -95,6 +99,17 @@ in
         '';
       };
 
+      enableHidpi = mkOption {
+        type = types.bool;
+        default = true;
+        description = ''
+          Whether to enable automatic HiDPI mode.
+          </para>
+          <para>
+          Versions up to 0.17 are broken so this only works from 0.18 onwards.
+        '';
+      };
+
       extraConfig = mkOption {
         type = types.lines;
         default = "";