1 files changed, 11 insertions, 1 deletions
diff --git a/src/widgets/widgets/qmenu.cpp b/src/widgets/widgets/qmenu.cpp
index 287be3e272..7b6a1b6da8 100644
--- a/src/widgets/widgets/qmenu.cpp
+++ b/src/widgets/widgets/qmenu.cpp
@@ -2331,8 +2331,18 @@ void QMenu::popup(const QPoint &p, QAction *atAction)
     d->updateLayoutDirection();
 
     // Ensure that we get correct sizeHints by placing this window on the correct screen.
-    if (d->setScreenForPoint(p))
+    // However if the QMenu was constructed with a QDesktopScreenWidget as its parent,
+    // then initialScreenIndex was set, so we should respect that for the lifetime of this menu.
+    // Use d->popupScreen to remember, because initialScreenIndex will be reset after the first showing.
+    const int screenIndex = d->topData()->initialScreenIndex;
+    if (screenIndex >= 0)
+        d->popupScreen = screenIndex;
+    if (auto s = QGuiApplication::screens().value(d->popupScreen)) {
+        if (d->setScreen(s))
+            d->itemsDirty = true;
+    } else if (d->setScreenForPoint(p)) {
         d->itemsDirty = true;
+    }
 
     const bool contextMenu = d->isContextMenu();
     if (d->lastContextMenu != contextMenu) {