diff --git a/autotests/integration/effects/desktop_switching_animation_test.cpp b/autotests/integration/effects/desktop_switching_animation_test.cpp
index fadae89d20..bc96e43be9 100644
--- a/autotests/integration/effects/desktop_switching_animation_test.cpp
+++ b/autotests/integration/effects/desktop_switching_animation_test.cpp
@@ -46,6 +46,7 @@ void DesktopSwitchingAnimationTest::initTestCase()
     QSignalSpy applicationStartedSpy(kwinApp(), &Application::started);
     kwinApp()->platform()->setInitialWindowSize(QSize(1280, 1024));
     QVERIFY(waylandServer()->init(s_socketName));
+    QMetaObject::invokeMethod(kwinApp()->platform(), "setVirtualOutputs", Qt::DirectConnection, Q_ARG(int, 2));
 
     auto config = KSharedConfig::openConfig(QString(), KConfig::SimpleConfig);
     KConfigGroup plugins(config, QStringLiteral("Plugins"));
diff --git a/autotests/integration/effects/maximize_animation_test.cpp b/autotests/integration/effects/maximize_animation_test.cpp
index 95237ad41c..d1b0e53963 100644
--- a/autotests/integration/effects/maximize_animation_test.cpp
+++ b/autotests/integration/effects/maximize_animation_test.cpp
@@ -44,6 +44,7 @@ void MaximizeAnimationTest::initTestCase()
     QSignalSpy applicationStartedSpy(kwinApp(), &Application::started);
     kwinApp()->platform()->setInitialWindowSize(QSize(1280, 1024));
     QVERIFY(waylandServer()->init(s_socketName));
+    QMetaObject::invokeMethod(kwinApp()->platform(), "setVirtualOutputs", Qt::DirectConnection, Q_ARG(int, 2));
 
     auto config = KSharedConfig::openConfig(QString(), KConfig::SimpleConfig);
     KConfigGroup plugins(config, QStringLiteral("Plugins"));
diff --git a/autotests/integration/effects/minimize_animation_test.cpp b/autotests/integration/effects/minimize_animation_test.cpp
index 3db47b0ffe..a11553aea9 100644
--- a/autotests/integration/effects/minimize_animation_test.cpp
+++ b/autotests/integration/effects/minimize_animation_test.cpp
@@ -47,6 +47,7 @@ void MinimizeAnimationTest::initTestCase()
     QSignalSpy applicationStartedSpy(kwinApp(), &Application::started);
     kwinApp()->platform()->setInitialWindowSize(QSize(1280, 1024));
     QVERIFY(waylandServer()->init(s_socketName));
+    QMetaObject::invokeMethod(kwinApp()->platform(), "setVirtualOutputs", Qt::DirectConnection, Q_ARG(int, 2));
 
     auto config = KSharedConfig::openConfig(QString(), KConfig::SimpleConfig);
     KConfigGroup plugins(config, QStringLiteral("Plugins"));
diff --git a/autotests/integration/effects/popup_open_close_animation_test.cpp b/autotests/integration/effects/popup_open_close_animation_test.cpp
index a798a7a68b..73ad245f98 100644
--- a/autotests/integration/effects/popup_open_close_animation_test.cpp
+++ b/autotests/integration/effects/popup_open_close_animation_test.cpp
@@ -53,6 +53,7 @@ void PopupOpenCloseAnimationTest::initTestCase()
     QSignalSpy applicationStartedSpy(kwinApp(), &Application::started);
     kwinApp()->platform()->setInitialWindowSize(QSize(1280, 1024));
     QVERIFY(waylandServer()->init(s_socketName));
+    QMetaObject::invokeMethod(kwinApp()->platform(), "setVirtualOutputs", Qt::DirectConnection, Q_ARG(int, 2));
 
     auto config = KSharedConfig::openConfig(QString(), KConfig::SimpleConfig);
     KConfigGroup plugins(config, QStringLiteral("Plugins"));
diff --git a/autotests/integration/effects/scripted_effects_test.cpp b/autotests/integration/effects/scripted_effects_test.cpp
index b1c5b0a369..e1b9d0a030 100644
--- a/autotests/integration/effects/scripted_effects_test.cpp
+++ b/autotests/integration/effects/scripted_effects_test.cpp
@@ -132,6 +132,7 @@ void ScriptedEffectsTest::initTestCase()
     QSignalSpy applicationStartedSpy(kwinApp(), &Application::started);
     kwinApp()->platform()->setInitialWindowSize(QSize(1280, 1024));
     QVERIFY(waylandServer()->init(s_socketName));
+    QMetaObject::invokeMethod(kwinApp()->platform(), "setVirtualOutputs", Qt::DirectConnection, Q_ARG(int, 1));
 
     // disable all effects - we don't want to have it interact with the rendering
     auto config = KSharedConfig::openConfig(QString(), KConfig::SimpleConfig);
diff --git a/autotests/integration/effects/slidingpopups_test.cpp b/autotests/integration/effects/slidingpopups_test.cpp
index a89804fc8d..1e9a729095 100644
--- a/autotests/integration/effects/slidingpopups_test.cpp
+++ b/autotests/integration/effects/slidingpopups_test.cpp
@@ -54,6 +54,7 @@ void SlidingPopupsTest::initTestCase()
     QSignalSpy applicationStartedSpy(kwinApp(), &Application::started);
     kwinApp()->platform()->setInitialWindowSize(QSize(1280, 1024));
     QVERIFY(waylandServer()->init(s_socketName));
+    QMetaObject::invokeMethod(kwinApp()->platform(), "setVirtualOutputs", Qt::DirectConnection, Q_ARG(int, 2));
 
     // disable all effects - we don't want to have it interact with the rendering
     auto config = KSharedConfig::openConfig(QString(), KConfig::SimpleConfig);
diff --git a/autotests/integration/effects/toplevel_open_close_animation_test.cpp b/autotests/integration/effects/toplevel_open_close_animation_test.cpp
index 9ec1fd91c1..c7d35bd3f4 100644
--- a/autotests/integration/effects/toplevel_open_close_animation_test.cpp
+++ b/autotests/integration/effects/toplevel_open_close_animation_test.cpp
@@ -49,6 +49,7 @@ void ToplevelOpenCloseAnimationTest::initTestCase()
     QSignalSpy applicationStartedSpy(kwinApp(), &Application::started);
     kwinApp()->platform()->setInitialWindowSize(QSize(1280, 1024));
     QVERIFY(waylandServer()->init(s_socketName));
+    QMetaObject::invokeMethod(kwinApp()->platform(), "setVirtualOutputs", Qt::DirectConnection, Q_ARG(int, 2));
 
     auto config = KSharedConfig::openConfig(QString(), KConfig::SimpleConfig);
     KConfigGroup plugins(config, QStringLiteral("Plugins"));
diff --git a/autotests/integration/effects/translucency_test.cpp b/autotests/integration/effects/translucency_test.cpp
index e76f5226c7..a933c3a009 100644
--- a/autotests/integration/effects/translucency_test.cpp
+++ b/autotests/integration/effects/translucency_test.cpp
@@ -48,6 +48,7 @@ void TranslucencyTest::initTestCase()
     QSignalSpy applicationStartedSpy(kwinApp(), &Application::started);
     kwinApp()->platform()->setInitialWindowSize(QSize(1280, 1024));
     QVERIFY(waylandServer()->init(s_socketName));
+    QMetaObject::invokeMethod(kwinApp()->platform(), "setVirtualOutputs", Qt::DirectConnection, Q_ARG(int, 2));
 
     // disable all effects - we don't want to have it interact with the rendering
     auto config = KSharedConfig::openConfig(QString(), KConfig::SimpleConfig);
diff --git a/autotests/integration/effects/wobbly_shade_test.cpp b/autotests/integration/effects/wobbly_shade_test.cpp
index 2d01b05697..e86c9dd024 100644
--- a/autotests/integration/effects/wobbly_shade_test.cpp
+++ b/autotests/integration/effects/wobbly_shade_test.cpp
@@ -49,6 +49,7 @@ void WobblyWindowsShadeTest::initTestCase()
     QSignalSpy applicationStartedSpy(kwinApp(), &Application::started);
     kwinApp()->platform()->setInitialWindowSize(QSize(1280, 1024));
     QVERIFY(waylandServer()->init(s_socketName));
+    QMetaObject::invokeMethod(kwinApp()->platform(), "setVirtualOutputs", Qt::DirectConnection, Q_ARG(int, 2));
 
     // disable all effects - we don't want to have it interact with the rendering
     auto config = KSharedConfig::openConfig(QString(), KConfig::SimpleConfig);
diff --git a/autotests/integration/generic_scene_opengl_test.cpp b/autotests/integration/generic_scene_opengl_test.cpp
index ea34a30784..006effa476 100644
--- a/autotests/integration/generic_scene_opengl_test.cpp
+++ b/autotests/integration/generic_scene_opengl_test.cpp
@@ -42,6 +42,7 @@ void GenericSceneOpenGLTest::initTestCase()
     QSignalSpy applicationStartedSpy(kwinApp(), &Application::started);
     kwinApp()->platform()->setInitialWindowSize(QSize(1280, 1024));
     QVERIFY(waylandServer()->init(s_socketName));
+    QMetaObject::invokeMethod(kwinApp()->platform(), "setVirtualOutputs", Qt::DirectConnection, Q_ARG(int, 2));
 
     // disable all effects - we don't want to have it interact with the rendering
     auto config = KSharedConfig::openConfig(QString(), KConfig::SimpleConfig);
diff --git a/autotests/integration/globalshortcuts_test.cpp b/autotests/integration/globalshortcuts_test.cpp
index a82e693951..b08bcb2496 100644
--- a/autotests/integration/globalshortcuts_test.cpp
+++ b/autotests/integration/globalshortcuts_test.cpp
@@ -60,6 +60,7 @@ void GlobalShortcutsTest::initTestCase()
     QSignalSpy applicationStartedSpy(kwinApp(), &Application::started);
     kwinApp()->platform()->setInitialWindowSize(QSize(1280, 1024));
     QVERIFY(waylandServer()->init(s_socketName));
+    QMetaObject::invokeMethod(kwinApp()->platform(), "setVirtualOutputs", Qt::DirectConnection, Q_ARG(int, 2));
 
     kwinApp()->setConfig(KSharedConfig::openConfig(QString(), KConfig::SimpleConfig));
     qputenv("KWIN_XKB_DEFAULT_KEYMAP", "1");
diff --git a/autotests/integration/keyboard_layout_test.cpp b/autotests/integration/keyboard_layout_test.cpp
index 01063bd589..00d4de611c 100644
--- a/autotests/integration/keyboard_layout_test.cpp
+++ b/autotests/integration/keyboard_layout_test.cpp
@@ -134,6 +134,7 @@ void KeyboardLayoutTest::initTestCase()
     QSignalSpy applicationStartedSpy(kwinApp(), &Application::started);
     kwinApp()->platform()->setInitialWindowSize(QSize(1280, 1024));
     QVERIFY(waylandServer()->init(s_socketName));
+    QMetaObject::invokeMethod(kwinApp()->platform(), "setVirtualOutputs", Qt::DirectConnection, Q_ARG(int, 2));
 
     kwinApp()->setConfig(KSharedConfig::openConfig(QString(), KConfig::SimpleConfig));
     kwinApp()->setKxkbConfig(KSharedConfig::openConfig(QString(), KConfig::SimpleConfig));
diff --git a/autotests/integration/move_resize_window_test.cpp b/autotests/integration/move_resize_window_test.cpp
index 890246912d..75c58ed4b3 100644
--- a/autotests/integration/move_resize_window_test.cpp
+++ b/autotests/integration/move_resize_window_test.cpp
@@ -84,6 +84,7 @@ void MoveResizeWindowTest::initTestCase()
     QSignalSpy applicationStartedSpy(kwinApp(), &Application::started);
     kwinApp()->platform()->setInitialWindowSize(QSize(1280, 1024));
     QVERIFY(waylandServer()->init(s_socketName));
+    QMetaObject::invokeMethod(kwinApp()->platform(), "setVirtualOutputs", Qt::DirectConnection, Q_ARG(int, 1));
     kwinApp()->start();
     QVERIFY(applicationStartedSpy.wait());
     const auto outputs = workspace()->outputs();
diff --git a/autotests/integration/plasma_surface_test.cpp b/autotests/integration/plasma_surface_test.cpp
index f195af8b1a..b43c5805c6 100644
--- a/autotests/integration/plasma_surface_test.cpp
+++ b/autotests/integration/plasma_surface_test.cpp
@@ -62,6 +62,8 @@ void PlasmaSurfaceTest::initTestCase()
     QSignalSpy applicationStartedSpy(kwinApp(), &Application::started);
     kwinApp()->platform()->setInitialWindowSize(QSize(1280, 1024));
     QVERIFY(waylandServer()->init(s_socketName));
+    QMetaObject::invokeMethod(kwinApp()->platform(), "setVirtualOutputs", Qt::DirectConnection, Q_ARG(int, 1));
+
     kwinApp()->start();
     QVERIFY(applicationStartedSpy.wait());
 }
diff --git a/autotests/integration/platformcursor.cpp b/autotests/integration/platformcursor.cpp
index 1467fbae7e..5b2a65b0cd 100644
--- a/autotests/integration/platformcursor.cpp
+++ b/autotests/integration/platformcursor.cpp
@@ -30,6 +30,8 @@ void PlatformCursorTest::initTestCase()
     QSignalSpy applicationStartedSpy(kwinApp(), &Application::started);
     kwinApp()->platform()->setInitialWindowSize(QSize(1280, 1024));
     QVERIFY(waylandServer()->init(s_socketName));
+    QMetaObject::invokeMethod(kwinApp()->platform(), "setVirtualOutputs", Qt::DirectConnection, Q_ARG(int, 2));
+
     kwinApp()->start();
     QVERIFY(applicationStartedSpy.wait());
 }
diff --git a/autotests/integration/scene_qpainter_test.cpp b/autotests/integration/scene_qpainter_test.cpp
index 490636d4e6..1e1c8d4e85 100644
--- a/autotests/integration/scene_qpainter_test.cpp
+++ b/autotests/integration/scene_qpainter_test.cpp
@@ -61,6 +61,7 @@ void SceneQPainterTest::initTestCase()
     QSignalSpy applicationStartedSpy(kwinApp(), &Application::started);
     kwinApp()->platform()->setInitialWindowSize(QSize(1280, 1024));
     QVERIFY(waylandServer()->init(s_socketName));
+    QMetaObject::invokeMethod(kwinApp()->platform(), "setVirtualOutputs", Qt::DirectConnection, Q_ARG(int, 2));
 
     // disable all effects - we don't want to have it interact with the rendering
     auto config = KSharedConfig::openConfig(QString(), KConfig::SimpleConfig);
diff --git a/autotests/integration/screen_changes_test.cpp b/autotests/integration/screen_changes_test.cpp
index 25bdb3baf5..d1451b7f2b 100644
--- a/autotests/integration/screen_changes_test.cpp
+++ b/autotests/integration/screen_changes_test.cpp
@@ -39,6 +39,7 @@ void ScreenChangesTest::initTestCase()
     QSignalSpy applicationStartedSpy(kwinApp(), &Application::started);
     kwinApp()->platform()->setInitialWindowSize(QSize(1280, 1024));
     QVERIFY(waylandServer()->init(s_socketName));
+    QMetaObject::invokeMethod(kwinApp()->platform(), "setVirtualOutputs", Qt::DirectConnection, Q_ARG(int, 1));
 
     kwinApp()->start();
     QVERIFY(applicationStartedSpy.wait());
diff --git a/autotests/integration/screenedges_test.cpp b/autotests/integration/screenedges_test.cpp
index 526b442fc8..5b74a9d73f 100644
--- a/autotests/integration/screenedges_test.cpp
+++ b/autotests/integration/screenedges_test.cpp
@@ -70,6 +70,7 @@ void ScreenEdgesTest::initTestCase()
     QSignalSpy applicationStartedSpy(kwinApp(), &Application::started);
     kwinApp()->platform()->setInitialWindowSize(QSize(1280, 1024));
     QVERIFY(waylandServer()->init(s_socketName));
+    QMetaObject::invokeMethod(kwinApp()->platform(), "setVirtualOutputs", Qt::DirectConnection, Q_ARG(int, 1));
 
     // Disable effects, in particular present windows, which reserves a screen edge.
     auto config = KSharedConfig::openConfig(QString(), KConfig::SimpleConfig);
diff --git a/autotests/integration/scripting/screenedge_test.cpp b/autotests/integration/scripting/screenedge_test.cpp
index 354f07d609..37cc223edb 100644
--- a/autotests/integration/scripting/screenedge_test.cpp
+++ b/autotests/integration/scripting/screenedge_test.cpp
@@ -51,6 +51,7 @@ void ScreenEdgeTest::initTestCase()
     QSignalSpy applicationStartedSpy(kwinApp(), &Application::started);
     kwinApp()->platform()->setInitialWindowSize(QSize(1280, 1024));
     QVERIFY(waylandServer()->init(s_socketName));
+    QMetaObject::invokeMethod(kwinApp()->platform(), "setVirtualOutputs", Qt::DirectConnection, Q_ARG(int, 1));
 
     // empty config to have defaults
     auto config = KSharedConfig::openConfig(QString(), KConfig::SimpleConfig);
diff --git a/autotests/integration/tabbox_test.cpp b/autotests/integration/tabbox_test.cpp
index 1509e1e7dc..2b04fa62e6 100644
--- a/autotests/integration/tabbox_test.cpp
+++ b/autotests/integration/tabbox_test.cpp
@@ -45,6 +45,7 @@ void TabBoxTest::initTestCase()
     QSignalSpy applicationStartedSpy(kwinApp(), &Application::started);
     kwinApp()->platform()->setInitialWindowSize(QSize(1280, 1024));
     QVERIFY(waylandServer()->init(s_socketName));
+    QMetaObject::invokeMethod(kwinApp()->platform(), "setVirtualOutputs", Qt::DirectConnection, Q_ARG(int, 2));
 
     KSharedConfigPtr c = KSharedConfig::openConfig(QString(), KConfig::SimpleConfig);
     c->group("TabBox").writeEntry("ShowTabBox", false);