3 files changed, 30 insertions, 20 deletions
diff --git a/nixos/modules/config/pulseaudio.nix b/nixos/modules/config/pulseaudio.nix
index fb5715022b78..297b3a82d6c1 100644
--- a/nixos/modules/config/pulseaudio.nix
+++ b/nixos/modules/config/pulseaudio.nix
@@ -71,8 +71,7 @@ in {
       };
 
       configFile = mkOption {
-        type = types.uniq types.path;
-        default = "${cfg.package}/etc/pulse/default.pa";
+        type = types.path;
         description = ''
           The path to the configuration the PulseAudio server
           should use. By default, the "default.pa" configuration
@@ -112,6 +111,8 @@ in {
         target = "pulse/client.conf";
         source = clientConf;
       };
+
+      hardware.pulseaudio.configFile = mkDefault "${cfg.package}/etc/pulse/default.pa";
     }
 
     (mkIf cfg.enable {
diff --git a/nixos/modules/services/hardware/pommed.nix b/nixos/modules/services/hardware/pommed.nix
index 04db46999b0a..a24557b40ba1 100644
--- a/nixos/modules/services/hardware/pommed.nix
+++ b/nixos/modules/services/hardware/pommed.nix
@@ -4,30 +4,34 @@ with lib;
 
 {
 
-  options.services.hardware.pommed = {
-    enable = mkOption {
-      default = false;
-       description = ''
-        Whether to use the pommed tool to handle Apple laptop keyboard hotkeys.
-      '';
+  options = {
+
+    services.hardware.pommed = {
+
+      enable = mkOption {
+        type = types.bool;
+        default = false;
+        description = ''
+          Whether to use the pommed tool to handle Apple laptop keyboard hotkeys.
+        '';
+      };
+
+      configFile = mkOption {
+        type = types.path;
+        description = ''
+          The path to the <filename>pommed.conf</filename> file.
+        '';
+      };
     };
 
-    configFile = mkOption {
-      default = "${pkgs.pommed}/etc/pommed.conf";
-      description = ''
-        The contents of the pommed.conf file.
-      '';
-    };
   };
 
   config = mkIf config.services.hardware.pommed.enable {
     environment.systemPackages = [ pkgs.polkit ];
 
-    environment.etc = [
-      { source = config.services.hardware.pommed.configFile;
-        target = "pommed.conf";
-      }
-    ];
+    environment.etc."pommed.conf".source = config.services.hardware.pommed.configFile;
+
+    services.hardware.pommed.configFile = "${pkgs.pommed}/etc/pommed.conf";
 
     services.dbus.packages = [ pkgs.pommed ];
 
diff --git a/nixos/modules/services/x11/display-managers/default.nix b/nixos/modules/services/x11/display-managers/default.nix
index 6e61576f501f..004ea6ef49ac 100644
--- a/nixos/modules/services/x11/display-managers/default.nix
+++ b/nixos/modules/services/x11/display-managers/default.nix
@@ -169,7 +169,6 @@ in
 
       xserverBin = mkOption {
         type = types.path;
-        default = "${xorg.xorgserver}/bin/X";
         description = "Path to the X server used by display managers.";
       };
 
@@ -280,4 +279,10 @@ in
 
   };
 
+  config = {
+
+    services.xserver.displayManager.xserverBin = "${xorg.xorgserver}/bin/X";
+
+  };
+
 }