diff --git a/ksmserver/CMakeLists.txt b/ksmserver/CMakeLists.txt
--- a/ksmserver/CMakeLists.txt
+++ b/ksmserver/CMakeLists.txt
@@ -66,6 +66,7 @@
     PW::KWorkspace
     KF5::XmlGui
     KF5::GlobalAccel
+    KF5::I18n
     KF5::KIOCore
     KF5::KIOWidgets
     ${X11_LIBRARIES}
@@ -75,8 +76,9 @@
     Qt5::Quick
     KF5::Declarative
     KF5::DBusAddons
+    KF5::Notifications
     KF5::Package
-    KF5::KDELibs4Support # Solid/PowerManagement
+    KF5::WindowSystem
     ${PHONON_LIBRARIES}
     Qt5::Concurrent
 )
diff --git a/ksmserver/logout.cpp b/ksmserver/logout.cpp
--- a/ksmserver/logout.cpp
+++ b/ksmserver/logout.cpp
@@ -76,8 +76,6 @@
 #include "global.h"
 #include "client.h"
 
-#include <solid/powermanagement.h>
-
 #include "logoutprompt_interface.h"
 #include "shutdown_interface.h"
 
@@ -184,10 +182,6 @@
     }
     state = Shutdown;
 
-    // If the logout was confirmed, let's start a powermanagement inhibition.
-    // We store the cookie so we can interrupt it if the logout will be canceled
-    inhibitCookie = Solid::PowerManagement::beginSuppressingSleep(QStringLiteral("Shutting down system"));
-
     // shall we save the session on logout?
     KConfigGroup cg(KSharedConfig::openConfig(), "General");
     saveSession = ( cg.readEntry( "loginMode",
@@ -393,7 +387,6 @@
         clientsToSave.clear();
         emit subSessionCloseCanceled();
     } else {
-        Solid::PowerManagement::stopSuppressingSleep(inhibitCookie);
         qCDebug(KSMSERVER) << "Client " << c->program() << " (" << c->clientId() << ") canceled shutdown.";
         KNotification::event( QStringLiteral( "cancellogout" ),
                               i18n( "Logout canceled by '%1'", c->program()),
diff --git a/ksmserver/server.h b/ksmserver/server.h
--- a/ksmserver/server.h
+++ b/ksmserver/server.h
@@ -245,10 +245,6 @@
 
     WindowMap legacyWindows;
 
-
-    int inhibitCookie;
-
-
     //subSession stuff
     QList<KSMClient*> clientsToKill;
     QList<KSMClient*> clientsToSave;