diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -556,6 +556,7 @@
 qt5_add_dbus_adaptor( kwin_KDEINIT_SRCS org.kde.KWin.VirtualDesktopManager.xml dbusinterface.h KWin::VirtualDesktopManagerDBusInterface )
 
 qt5_add_dbus_interface( kwin_KDEINIT_SRCS ${KSCREENLOCKER_DBUS_INTERFACES_DIR}/kf5_org.freedesktop.ScreenSaver.xml screenlocker_interface )
+qt5_add_dbus_interface( kwin_KDEINIT_SRCS ${KSCREENLOCKER_DBUS_INTERFACES_DIR}/org.kde.screensaver.xml kscreenlocker_interface )
 
 qt5_add_dbus_interface( kwin_KDEINIT_SRCS org.kde.kappmenu.xml appmenu_interface )
 
diff --git a/effects.cpp b/effects.cpp
--- a/effects.cpp
+++ b/effects.cpp
@@ -212,6 +212,7 @@
 #endif
     connect(ScreenEdges::self(), &ScreenEdges::approaching, this, &EffectsHandler::screenEdgeApproaching);
     connect(ScreenLockerWatcher::self(), &ScreenLockerWatcher::locked, this, &EffectsHandler::screenLockingChanged);
+    connect(ScreenLockerWatcher::self(), &ScreenLockerWatcher::aboutToLock, this, &EffectsHandler::screenAboutToLock);
 
     connect(kwinApp(), &Application::x11ConnectionChanged, this,
         [this] {
diff --git a/effects/cube/cube.cpp b/effects/cube/cube.cpp
--- a/effects/cube/cube.cpp
+++ b/effects/cube/cube.cpp
@@ -101,6 +101,16 @@
     connect(effects, &EffectsHandler::tabBoxAdded, this, &CubeEffect::slotTabBoxAdded);
     connect(effects, &EffectsHandler::tabBoxClosed, this, &CubeEffect::slotTabBoxClosed);
     connect(effects, &EffectsHandler::tabBoxUpdated, this, &CubeEffect::slotTabBoxUpdated);
+    connect(effects, &EffectsHandler::screenAboutToLock, this, [this]() {
+        // Set active(false) does not release key grabs until the animation completes
+        // As we know the lockscreen is trying to grab them, release them early
+        // all other grabs are released in the normal way
+        setActive(false);
+        if (keyboard_grab) {
+            effects->ungrabKeyboard();
+            keyboard_grab = false;
+        }
+    });
 
     reconfigure(ReconfigureAll);
 }
diff --git a/effects/desktopgrid/desktopgrid.cpp b/effects/desktopgrid/desktopgrid.cpp
--- a/effects/desktopgrid/desktopgrid.cpp
+++ b/effects/desktopgrid/desktopgrid.cpp
@@ -88,6 +88,14 @@
     connect(effects, &EffectsHandler::windowGeometryShapeChanged, this, &DesktopGridEffect::slotWindowGeometryShapeChanged);
     connect(effects, &EffectsHandler::numberScreensChanged, this, &DesktopGridEffect::setup);
 
+    connect(effects, &EffectsHandler::screenAboutToLock, this, [this]() {
+        setActive(false);
+        if (keyboardGrab) {
+            effects->ungrabKeyboard();
+            keyboardGrab = false;
+        }
+    });
+
     // Load all other configuration details
     reconfigure(ReconfigureAll);
 }
diff --git a/effects/flipswitch/flipswitch.cpp b/effects/flipswitch/flipswitch.cpp
--- a/effects/flipswitch/flipswitch.cpp
+++ b/effects/flipswitch/flipswitch.cpp
@@ -75,6 +75,10 @@
     connect(effects, &EffectsHandler::tabBoxClosed, this, &FlipSwitchEffect::slotTabBoxClosed);
     connect(effects, &EffectsHandler::tabBoxUpdated, this, &FlipSwitchEffect::slotTabBoxUpdated);
     connect(effects, &EffectsHandler::tabBoxKeyEvent, this, &FlipSwitchEffect::slotTabBoxKeyEvent);
+    connect(effects, &EffectsHandler::screenAboutToLock, this, [this]() {
+        setActive(false, AllDesktopsMode);
+        setActive(false, CurrentDesktopMode);
+    });
 }
 
 FlipSwitchEffect::~FlipSwitchEffect()
diff --git a/effects/presentwindows/presentwindows.cpp b/effects/presentwindows/presentwindows.cpp
--- a/effects/presentwindows/presentwindows.cpp
+++ b/effects/presentwindows/presentwindows.cpp
@@ -111,6 +111,9 @@
                 reCreateGrids();
         }
     );
+    connect(effects, &EffectsHandler::screenAboutToLock, this, [this]() {
+        setActive(false);
+    });
 }
 
 PresentWindowsEffect::~PresentWindowsEffect()
diff --git a/libkwineffects/kwineffects.h b/libkwineffects/kwineffects.h
--- a/libkwineffects/kwineffects.h
+++ b/libkwineffects/kwineffects.h
@@ -1661,6 +1661,13 @@
      **/
     void screenLockingChanged(bool locked);
 
+    /**
+     * This signal is emitted just before the screen locker tries to grab keys and lock the screen
+     * Effects should release any grabs immediately
+     * @since 5.17
+     **/
+    void screenAboutToLock();
+
     /**
      * This signels is emitted when ever the stacking order is change, ie. a window is risen
      * or lowered
diff --git a/screenlockerwatcher.h b/screenlockerwatcher.h
--- a/screenlockerwatcher.h
+++ b/screenlockerwatcher.h
@@ -25,6 +25,7 @@
 #include <kwinglobals.h>
 
 class OrgFreedesktopScreenSaverInterface;
+class OrgKdeScreensaverInterface;
 class QDBusServiceWatcher;
 class QDBusPendingCallWatcher;
 
@@ -41,15 +42,17 @@
     }
 Q_SIGNALS:
     void locked(bool locked);
+    void aboutToLock();
 private Q_SLOTS:
     void setLocked(bool activated);
     void activeQueried(QDBusPendingCallWatcher *watcher);
     void serviceOwnerChanged(const QString &serviceName, const QString &oldOwner, const QString &newOwner);
     void serviceRegisteredQueried();
     void serviceOwnerQueried();
 private:
     void initialize();
-    OrgFreedesktopScreenSaverInterface *m_interface;
+    OrgFreedesktopScreenSaverInterface *m_interface = nullptr;
+    OrgKdeScreensaverInterface *m_kdeInterface = nullptr;
     QDBusServiceWatcher *m_serviceWatcher;
     bool m_locked;
 
diff --git a/screenlockerwatcher.cpp b/screenlockerwatcher.cpp
--- a/screenlockerwatcher.cpp
+++ b/screenlockerwatcher.cpp
@@ -24,6 +24,7 @@
 #include <QtConcurrentRun>
 // dbus generated
 #include "screenlocker_interface.h"
+#include "kscreenlocker_interface.h"
 
 namespace KWin
 {
@@ -34,7 +35,6 @@
 
 ScreenLockerWatcher::ScreenLockerWatcher(QObject *parent)
     : QObject(parent)
-    , m_interface(NULL)
     , m_serviceWatcher(new QDBusServiceWatcher(this))
     , m_locked(false)
 {
@@ -70,13 +70,18 @@
         return;
     }
     delete m_interface;
-    m_interface = NULL;
+    m_interface = nullptr;
+    delete m_kdeInterface;
+    m_kdeInterface = nullptr;
+
     m_locked = false;
     if (!newOwner.isEmpty()) {
         m_interface = new OrgFreedesktopScreenSaverInterface(newOwner, QStringLiteral("/ScreenSaver"), QDBusConnection::sessionBus(), this);
+        m_kdeInterface = new OrgKdeScreensaverInterface(newOwner, QStringLiteral("/ScreenSaver"), QDBusConnection::sessionBus(), this);
         connect(m_interface, SIGNAL(ActiveChanged(bool)), SLOT(setLocked(bool)));
         QDBusPendingCallWatcher *watcher = new QDBusPendingCallWatcher(m_interface->GetActive(), this);
         connect(watcher, SIGNAL(finished(QDBusPendingCallWatcher*)), SLOT(activeQueried(QDBusPendingCallWatcher*)));
+        connect(m_kdeInterface, &OrgKdeScreensaverInterface::AboutToLock, this, &ScreenLockerWatcher::aboutToLock);
     }
 }