diff --git a/src/rules.cpp b/src/rules.cpp
index 8e36397b0f..f501a7431d 100644
--- a/src/rules.cpp
+++ b/src/rules.cpp
@@ -807,24 +807,19 @@ MaximizeMode WindowRules::checkMaximize(MaximizeMode mode, bool init) const
     return static_cast< MaximizeMode >((vert ? MaximizeVertical : 0) | (horiz ? MaximizeHorizontal : 0));
 }
 
-int WindowRules::checkScreen(int screen, bool init) const
+AbstractOutput *WindowRules::checkOutput(AbstractOutput *output, bool init) const
 {
-    if ( rules.count() == 0 )
-        return screen;
-    int ret = screen;
-    for ( QVector< Rules* >::ConstIterator it = rules.constBegin(); it != rules.constEnd(); ++it ) {
-        if ( (*it)->applyScreen( ret, init ))
+    if (rules.isEmpty()) {
+        return output;
+    }
+    int ret = kwinApp()->platform()->enabledOutputs().indexOf(output);
+    for (Rules *rule : rules) {
+        if (rule->applyScreen(ret, init)) {
             break;
+        }
     }
-    if (ret >= Screens::self()->count())
-        ret = screen;
-    return ret;
-}
-
-AbstractOutput *WindowRules::checkOutput(AbstractOutput *output, bool init) const
-{
-    int screenId = kwinApp()->platform()->enabledOutputs().indexOf(output);
-    return kwinApp()->platform()->findOutput(checkScreen(screenId, init));
+    AbstractOutput *ruleOutput = kwinApp()->platform()->findOutput(ret);
+    return ruleOutput ? ruleOutput : output;
 }
 
 CHECK_RULE(Minimize, bool)
diff --git a/src/rules.h b/src/rules.h
index fa5781d50f..bcc4204c79 100644
--- a/src/rules.h
+++ b/src/rules.h
@@ -54,7 +54,6 @@ public:
     int checkOpacityInactive(int s) const;
     bool checkIgnoreGeometry(bool ignore, bool init = false) const;
     QVector<VirtualDesktop *> checkDesktops(QVector<VirtualDesktop *> desktops, bool init = false) const;
-    int checkScreen(int screen, bool init = false) const;
     AbstractOutput *checkOutput(AbstractOutput *output, bool init = false) const;
     QStringList checkActivity(QStringList activity, bool init = false) const;
     NET::WindowType checkType(NET::WindowType type) const;
diff --git a/src/x11client.cpp b/src/x11client.cpp
index 86c8e3ddfb..f64efbdd9c 100644
--- a/src/x11client.cpp
+++ b/src/x11client.cpp
@@ -10,6 +10,7 @@
 // own
 #include "x11client.h"
 // kwin
+#include "abstract_output.h"
 #ifdef KWIN_BUILD_ACTIVITIES
 #include "activities.h"
 #endif
@@ -23,6 +24,7 @@
 #include "geometrytip.h"
 #include "group.h"
 #include "netinfo.h"
+#include "platform.h"
 #include "screenedge.h"
 #include "screens.h"
 #include "shadow.h"
@@ -607,9 +609,15 @@ bool X11Client::manage(xcb_window_t w, bool isMapped)
         area = workspace()->clientArea(FullArea, this, geom.center());
         checkOffscreenPosition(&geom, area);
     } else {
-        int screen = asn_data.xinerama() == -1 ? screens()->current() : asn_data.xinerama();
-        screen = rules()->checkScreen(screen, !isMapped);
-        area = workspace()->clientArea(PlacementArea, this, screens()->geometry(screen).center());
+        AbstractOutput *output = nullptr;
+        if (asn_data.xinerama() != -1) {
+            output = kwinApp()->platform()->findOutput(asn_data.xinerama());
+        }
+        if (!output) {
+            output = screens()->currentOutput();
+        }
+        output = rules()->checkOutput(output, !isMapped);
+        area = workspace()->clientArea(PlacementArea, this, output->geometry().center());
     }
 
     if (isDesktop())
@@ -3809,9 +3817,11 @@ void X11Client::configureRequest(int value_mask, int rx, int ry, int rw, int rh,
         QSize requestedFrameSize = clientSizeToFrameSize(requestedClientSize);
         requestedFrameSize = rules()->checkSize(requestedFrameSize);
         new_pos = rules()->checkPosition(new_pos);
-        int newScreen = screens()->number(QRect(new_pos, requestedFrameSize).center());
-        if (newScreen != rules()->checkScreen(newScreen))
+
+        AbstractOutput *newOutput = kwinApp()->platform()->outputAt(QRect(new_pos, requestedFrameSize).center());
+        if (newOutput != rules()->checkOutput(newOutput)) {
             return; // not allowed by rule
+        }
 
         QRect origClientGeometry = m_clientGeometry;
         GeometryUpdatesBlocker blocker(this);