diff --git a/autotests/integration/shell_client_test.cpp b/autotests/integration/shell_client_test.cpp
--- a/autotests/integration/shell_client_test.cpp
+++ b/autotests/integration/shell_client_test.cpp
@@ -29,6 +29,7 @@
 #include <KWayland/Client/connection_thread.h>
 #include <KWayland/Client/compositor.h>
 #include <KWayland/Client/shell.h>
+#include <KWayland/Client/output.h>
 #include <KWayland/Client/server_decoration.h>
 #include <KWayland/Client/surface.h>
 #include <KWayland/Client/xdgshell.h>
@@ -59,6 +60,8 @@
     void testMapUnmapMap();
     void testDesktopPresenceChanged();
     void testTransientPositionAfterRemap();
+    void testWindowOutputs_data();
+    void testWindowOutputs();
     void testMinimizeActiveWindow_data();
     void testMinimizeActiveWindow();
     void testFullscreen_data();
@@ -81,6 +84,8 @@
 {
     qRegisterMetaType<KWin::ShellClient*>();
     qRegisterMetaType<KWin::AbstractClient*>();
+    qRegisterMetaType<KWayland::Client::Output*>();
+
     QSignalSpy workspaceCreatedSpy(kwinApp(), &Application::workspaceCreated);
     QVERIFY(workspaceCreatedSpy.isValid());
     kwinApp()->platform()->setInitialWindowSize(QSize(1280, 1024));
@@ -269,6 +274,52 @@
     QCOMPARE(transient->geometry(), QRect(c->geometry().topLeft() + QPoint(5, 10), QSize(50, 40)));
 }
 
+void TestShellClient::testWindowOutputs_data()
+{
+    QTest::addColumn<Test::ShellSurfaceType>("type");
+
+    QTest::newRow("wlShell") << Test::ShellSurfaceType::WlShell;
+    QTest::newRow("xdgShellV5") << Test::ShellSurfaceType::XdgShellV5;
+}
+
+void TestShellClient::testWindowOutputs()
+{
+    QScopedPointer<Surface> surface(Test::createSurface());
+    QFETCH(Test::ShellSurfaceType, type);
+    QScopedPointer<QObject> shellSurface(Test::createShellSurface(type, surface.data()));
+    auto size = QSize(200,200);
+
+    QSignalSpy outputEnteredSpy(surface.data(), &Surface::outputEntered);
+    QSignalSpy outputLeftSpy(surface.data(), &Surface::outputLeft);
+
+    auto c = Test::renderAndWaitForShown(surface.data(), size, Qt::blue);
+    //move to be in the first screen
+    c->setGeometry(QRect(QPoint(100,100), size));
+    //we don't don't know where the compositor first placed this window,
+    //this might fire, it might not
+    outputEnteredSpy.wait(5);
+    outputEnteredSpy.clear();
+
+    QCOMPARE(surface->outputs().count(), 1);
+    QCOMPARE(surface->outputs().first()->globalPosition(), QPoint(0,0));
+
+    //move to overlapping both first and second screen
+    c->setGeometry(QRect(QPoint(1250,100), size));
+    QVERIFY(outputEnteredSpy.wait());
+    QCOMPARE(outputEnteredSpy.count(), 1);
+    QCOMPARE(outputLeftSpy.count(), 0);
+    QCOMPARE(surface->outputs().count(), 2);
+    QVERIFY(surface->outputs()[0] != surface->outputs()[1]);
+
+    //move entirely into second screen
+    c->setGeometry(QRect(QPoint(1400,100), size));
+    QVERIFY(outputLeftSpy.wait());
+    QCOMPARE(outputEnteredSpy.count(), 1);
+    QCOMPARE(outputLeftSpy.count(), 1);
+    QCOMPARE(surface->outputs().count(), 1);
+    QCOMPARE(surface->outputs().first()->globalPosition(), QPoint(1280,0));
+}
+
 void TestShellClient::testMinimizeActiveWindow_data()
 {
     QTest::addColumn<Test::ShellSurfaceType>("type");
diff --git a/shell_client.h b/shell_client.h
--- a/shell_client.h
+++ b/shell_client.h
@@ -185,6 +185,7 @@
     void markAsMapped();
     void setTransient();
     bool shouldExposeToWindowManagement();
+    void updateClientOutputs();
     KWayland::Server::XdgShellSurfaceInterface::States xdgSurfaceStates() const;
     void updateShowOnScreenEdge();
     static void deleteClient(ShellClient *c);
diff --git a/shell_client.cpp b/shell_client.cpp
--- a/shell_client.cpp
+++ b/shell_client.cpp
@@ -28,12 +28,14 @@
 #include "workspace.h"
 #include "virtualdesktops.h"
 #include "workspace.h"
+#include "screens.h"
 #include "decorations/decorationbridge.h"
 #include "decorations/decoratedclient.h"
 #include <KDecoration2/Decoration>
 #include <KDecoration2/DecoratedClient>
 
 #include <KWayland/Client/surface.h>
+#include <KWayland/Server/display.h>
 #include <KWayland/Server/clientconnection.h>
 #include <KWayland/Server/seat_interface.h>
 #include <KWayland/Server/shell_interface.h>
@@ -173,6 +175,9 @@
     connect(shellSurface, &T::fullscreenChanged, this, &ShellClient::clientFullScreenChanged);
 
     connect(shellSurface, &T::transientForChanged, this, &ShellClient::setTransient);
+
+    connect(this, &ShellClient::geometryChanged, this, &ShellClient::updateClientOutputs);
+    connect(screens(), &Screens::changed, this, &ShellClient::updateClientOutputs);
 }
 
 void ShellClient::init()
@@ -1522,4 +1527,17 @@
     }
 }
 
+void ShellClient::updateClientOutputs()
+{
+    QVector<OutputInterface*> clientOutputs;
+    const auto outputs = waylandServer()->display()->outputs();
+    for (OutputInterface* output: qAsConst(outputs)) {
+        const QRect outputGeom(output->globalPosition(), output->pixelSize() / output->scale());
+        if (geometry().intersects(outputGeom)) {
+            clientOutputs << output;
+        }
+    }
+    surface()->setOutputs(clientOutputs);
+}
+
 }