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-rw-r--r--nixos/modules/services/x11/desktop-managers/kde5.nix5
-rw-r--r--nixos/modules/services/x11/xserver.nix7
2 files changed, 11 insertions, 1 deletions
diff --git a/nixos/modules/services/x11/desktop-managers/kde5.nix b/nixos/modules/services/x11/desktop-managers/kde5.nix
index 1d60637c4ca2..4f74d5732af5 100644
--- a/nixos/modules/services/x11/desktop-managers/kde5.nix
+++ b/nixos/modules/services/x11/desktop-managers/kde5.nix
@@ -183,7 +183,10 @@ in
     services.upower.enable = config.powerManagement.enable;
 
     # Extra UDEV rules used by Solid
-    services.udev.packages = [ pkgs.media-player-info ];
+    services.udev.packages = [
+      pkgs.libmtp
+      pkgs.media-player-info
+    ];
 
     services.xserver.displayManager.sddm = {
       theme = "breeze";
diff --git a/nixos/modules/services/x11/xserver.nix b/nixos/modules/services/x11/xserver.nix
index d5babd5012fa..d03e8ec8b1ba 100644
--- a/nixos/modules/services/x11/xserver.nix
+++ b/nixos/modules/services/x11/xserver.nix
@@ -219,6 +219,12 @@ in
         '';
       };
 
+      dpi = mkOption {
+        type = types.nullOr types.int;
+        default = 0;
+        description = "DPI resolution to use for X server.";
+      };
+
       startDbusSession = mkOption {
         type = types.bool;
         default = true;
@@ -513,6 +519,7 @@ in
         "-xkbdir" "${cfg.xkbDir}"
       ] ++ optional (cfg.display != null) ":${toString cfg.display}"
         ++ optional (cfg.tty     != null) "vt${toString cfg.tty}"
+        ++ optional (cfg.dpi     != null) "-dpi ${toString cfg.dpi}"
         ++ optionals (cfg.display != null) [ "-logfile" "/var/log/X.${toString cfg.display}.log" ]
         ++ optional (!cfg.enableTCP) "-nolisten tcp";