diff --git a/src/plasmaquick/dialog.h b/src/plasmaquick/dialog.h
--- a/src/plasmaquick/dialog.h
+++ b/src/plasmaquick/dialog.h
@@ -221,6 +221,11 @@
      * window that is neither a parent dialog to nor a child dialog of this dialog.
      */
     void windowDeactivated();
+    /**
+     * Emitted when the popup is about to show
+     * it's still not visible, but geometry already adjusted
+     */
+    void aboutToShow();
 
 protected:
     /**
diff --git a/src/plasmaquick/dialog.cpp b/src/plasmaquick/dialog.cpp
--- a/src/plasmaquick/dialog.cpp
+++ b/src/plasmaquick/dialog.cpp
@@ -304,6 +304,12 @@
             if (mainItemLayout) {
                 updateLayoutParameters();
             }
+
+            //if is a wayland window that was hidden, we need
+            //to set its position again as there won't be any move event to sync QWindow::position and shellsurface::position
+            if (shellSurface) {
+                shellSurface->setPosition(q->position());
+            }
         }
     }
 
@@ -481,7 +487,7 @@
 
 void DialogPrivate::updateLayoutParameters()
 {
-    if (!componentComplete || !mainItem || !q->isVisible() || !mainItemLayout) {
+    if (!componentComplete || !mainItem || !mainItemLayout) {
         return;
     }
 
@@ -598,7 +604,7 @@
 {
     Q_ASSERT(mainItem);
 
-    if (!componentComplete || !q->isVisible()) {
+    if (!componentComplete) {
         return;
     }
     if (mainItem->width() <= 0 || mainItem->height() <= 0) {
@@ -1164,7 +1170,9 @@
          * see https://phabricator.kde.org/T6064
          */
 #if HAVE_KWAYLAND
-        if (!d->shellSurface) {
+        //sometimes non null regions arrive even for non visible windows
+        //for which surface creation would fail
+        if (!d->shellSurface && isVisible()) {
             KWindowSystem::setState(winId(), NET::SkipTaskbar | NET::SkipPager);
             d->setupWaylandIntegration();
             d->updateVisibility(true);
@@ -1356,6 +1364,17 @@
 
     d->visible = visible;
     if (d->componentComplete) {
+        if (visible) {
+            if (d->mainItem) {
+                d->mainItem->setVisible(true);
+                d->syncToMainItemSize();
+            }
+            if (d->mainItemLayout) {
+                d->updateLayoutParameters();
+            }
+
+            emit aboutToShow();
+        }
         if (visible && d->visualParent) {
             setPosition(popupPosition(d->visualParent, size()));
         }