diff --git a/pkgs/desktops/kde-4.7/kde-workspace.nix b/pkgs/desktops/kde-4.7/kde-workspace.nix
index 8116f4bb6b59..1ece3f490761 100644
--- a/pkgs/desktops/kde-4.7/kde-workspace.nix
+++ b/pkgs/desktops/kde-4.7/kde-workspace.nix
@@ -1,6 +1,6 @@
 { kde, kdelibs, qimageblitz, libdbusmenu_qt, xorg, shared_desktop_ontologies
 , lm_sensors, pciutils, libraw1394, libusb, libxklavier, python, libqalculate
-, consolekit, xkeyboard_config, kdepimlibs, pam, boost, gpsd, prison, akonadi
+, xkeyboard_config, kdepimlibs, pam, boost, gpsd, prison, akonadi
 , pykde4, libjpeg, pkgconfig, libXft, libXxf86misc
 }:
 
@@ -12,7 +12,7 @@ kde {
       xorg.libXcomposite xorg.libXdamage xorg.libXau xorg.libXdmcp
       xorg.libpthreadstubs
       boost gpsd shared_desktop_ontologies lm_sensors pciutils libraw1394
-      libusb python libqalculate consolekit kdepimlibs pam prison akonadi
+      libusb python libqalculate kdepimlibs pam prison akonadi
     ];
 
   buildNativeInputs = [ pkgconfig ];
diff --git a/pkgs/desktops/kde-4.8/kde-workspace.nix b/pkgs/desktops/kde-4.8/kde-workspace.nix
index 31937d4f1d56..1a86eacb3367 100644
--- a/pkgs/desktops/kde-4.8/kde-workspace.nix
+++ b/pkgs/desktops/kde-4.8/kde-workspace.nix
@@ -1,6 +1,6 @@
 { kde, kdelibs, qimageblitz, libdbusmenu_qt, xorg, shared_desktop_ontologies,
   lm_sensors, pciutils, libraw1394, libusb, libxklavier, python, libqalculate,
-  consolekit, xkeyboard_config, kdepimlibs, pam, boost, gpsd, prison, akonadi,
+  xkeyboard_config, kdepimlibs, pam, boost, gpsd, prison, akonadi,
   pykde4, libjpeg, pkgconfig, libXft, libXxf86misc, kactivities
 }:
 
@@ -12,7 +12,7 @@ kde {
       xorg.libXcomposite xorg.libXdamage xorg.libXau xorg.libXdmcp
       xorg.libpthreadstubs
       boost gpsd shared_desktop_ontologies lm_sensors pciutils libraw1394
-      libusb python libqalculate consolekit kdepimlibs pam prison akonadi
+      libusb python libqalculate kdepimlibs pam prison akonadi
       kactivities
     ];
 
diff --git a/pkgs/development/libraries/polkit/default.nix b/pkgs/development/libraries/polkit/default.nix
index 88daab5ff92f..788b6d6d32b8 100644
--- a/pkgs/development/libraries/polkit/default.nix
+++ b/pkgs/development/libraries/polkit/default.nix
@@ -1,6 +1,6 @@
 { stdenv, fetchurl, pkgconfig, glib, expat, pam, intltool, gettext
 , gobjectIntrospection
-, useSystemd ? false, systemd ? null }:
+, useSystemd ? true, systemd }:
 
 let
 
diff --git a/pkgs/os-specific/linux/upower/default.nix b/pkgs/os-specific/linux/upower/default.nix
index 2f870e5d9994..6ae4c22f48a7 100644
--- a/pkgs/os-specific/linux/upower/default.nix
+++ b/pkgs/os-specific/linux/upower/default.nix
@@ -1,6 +1,6 @@
 { stdenv, fetchurl, pkgconfig, glib, dbus, dbus_glib, dbus_tools, polkit
 , intltool, libxslt, docbook_xsl, udev, libusb1, pmutils
-, useSystemd ? false, systemd ? null
+, useSystemd ? true, systemd
 }:
 
 assert stdenv.isLinux;
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 49f0918faff3..749f3f247116 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -5095,12 +5095,11 @@ let
   zeromq2 = callPackage ../development/libraries/zeromq/2.x.nix {};
   zeromq3 = callPackage ../development/libraries/zeromq/3.x.nix {};
 
-  ### DEVELOPMENT / LIBRARIES / JAVA
 
+  ### DEVELOPMENT / LIBRARIES / JAVA
 
   atermjava = callPackage ../development/libraries/java/aterm {
     stdenv = overrideInStdenv stdenv [gnumake380];
-
   };
 
   commonsFileUpload = callPackage ../development/libraries/java/jakarta-commons/file-upload { };
@@ -5169,6 +5168,7 @@ let
 
   jquery_ui = callPackage ../development/libraries/javascript/jquery-ui { };
 
+
   ### DEVELOPMENT / PERL MODULES
 
   buildPerlPackage = import ../development/perl-modules/generic perl;
@@ -6241,7 +6241,7 @@ let
 
   udev145 = callPackage ../os-specific/linux/udev/145.nix { };
   udev173 = callPackage ../os-specific/linux/udev/173.nix { };
-  udev = pkgs.udev173;
+  udev = pkgs.systemd;
 
   udisks = callPackage ../os-specific/linux/udisks { };
 
@@ -7667,7 +7667,9 @@ let
 
   dropbox = callPackage ../applications/networking/dropbox { };
 
-  slim = callPackage ../applications/display-managers/slim { };
+  slim = callPackage ../applications/display-managers/slim {
+    consolekit = null;
+  };
 
   sndBase = builderDefsPackage (import ../applications/audio/snd) {
     inherit fetchurl stdenv stringsWithDeps lib fftw;