diff --git a/src/widgets/kernel/qapplication.cpp b/src/widgets/kernel/qapplication.cpp
index 0b983e7..864a5a0 100644
--- a/src/widgets/kernel/qapplication.cpp
+++ b/src/widgets/kernel/qapplication.cpp
@@ -1685,6 +1685,7 @@ QWidget *QApplication::focusWidget()
 
 void QApplicationPrivate::setFocusWidget(QWidget *focus, Qt::FocusReason reason)
 {
+    qDebug() << __FUNCTION__ << focus << reason;
 #ifndef QT_NO_GRAPHICSVIEW
     if (focus && focus->window()->graphicsProxyWidget())
         return;
@@ -2076,9 +2077,10 @@ void QApplication::setActiveWindow(QWidget* act)
                 } else {
                     // If the focus widget is not in the activate_window, clear the focus
                     w = QApplicationPrivate::focus_widget;
-                    if (!w && QApplicationPrivate::active_window->focusPolicy() != Qt::NoFocus)
+                    if (!w && QApplicationPrivate::active_window->focusPolicy() != Qt::NoFocus) {
+                        qDebug() << __FUNCTION__ << "calling setFocusWidget" << QApplicationPrivate::active_window;
                         QApplicationPrivate::setFocusWidget(QApplicationPrivate::active_window, Qt::ActiveWindowFocusReason);
-                    else if (!QApplicationPrivate::active_window->isAncestorOf(w))
+                    } else if (!QApplicationPrivate::active_window->isAncestorOf(w))
                         QApplicationPrivate::setFocusWidget(0, Qt::ActiveWindowFocusReason);
                 }
             }
@@ -3039,8 +3041,10 @@ bool QApplication::notify(QObject *receiver, QEvent *e)
             QPoint relpos = mouse->pos();
 
             if (e->spontaneous()) {
-                if (e->type() != QEvent::MouseMove)
+                if (e->type() != QEvent::MouseMove) {
+                    qDebug() << __FUNCTION__ << w << "calling giveFocusAccordingToFocusPolicy()";
                     QApplicationPrivate::giveFocusAccordingToFocusPolicy(w, e, relpos);
+                }
 
                 // ### Qt 5 These dynamic tool tips should be an OPT-IN feature. Some platforms
                 // like Mac OS X (probably others too), can optimize their views by not
@@ -3807,9 +3811,11 @@ void QApplicationPrivate::giveFocusAccordingToFocusPolicy(QWidget *widget, QEven
 
     QWidget *focusWidget = widget;
     while (focusWidget) {
+        qDebug() << __FUNCTION__ << "looping" << focusWidget << "starting from " << widget;
         if (focusWidget->isEnabled()
             && focusWidget->rect().contains(localPos)
             && QApplicationPrivate::shouldSetFocus(focusWidget, focusPolicy)) {
+            qDebug() << __FUNCTION__ << "setting" << focusWidget;
             focusWidget->setFocus(Qt::MouseFocusReason);
             break;
         }
diff --git a/src/widgets/kernel/qwidget.cpp b/src/widgets/kernel/qwidget.cpp
index 7396808..55d2ab7 100644
--- a/src/widgets/kernel/qwidget.cpp
+++ b/src/widgets/kernel/qwidget.cpp
@@ -5946,6 +5946,9 @@ bool QWidget::hasFocus() const
 
 void QWidget::setFocus(Qt::FocusReason reason)
 {
+    qDebug() << __FUNCTION__ << this <<  "reason=" << reason;
+    if (objectName() == "LineEdit0_0")
+        qDebug("QWidget::setFocusLE00!");
     if (!isEnabled())
         return;
 
@@ -6001,6 +6004,7 @@ void QWidget::setFocus(Qt::FocusReason reason)
 
         f->d_func()->updateFocusChild();
 
+        qDebug() << __FUNCTION__ << this << "calling setFocusWidget" << f;
         QApplicationPrivate::setFocusWidget(f, reason);
 #ifndef QT_NO_ACCESSIBILITY
 # ifdef Q_OS_WIN
@@ -6057,6 +6061,7 @@ void QWidget::setFocus(Qt::FocusReason reason)
 void QWidgetPrivate::updateFocusChild()
 {
     Q_Q(QWidget);
+    qDebug() << __FUNCTION__ << q;
 
     QWidget *w = q;
     if (q->isHidden()) {
@@ -6067,6 +6072,7 @@ void QWidgetPrivate::updateFocusChild()
     } else {
         while (w) {
             w->d_func()->focus_child = q;
+            qDebug() << __FUNCTION__ << w << "assigning focus_child" << q;
             w = w->isWindow() ? 0 : w->parentWidget();
         }
     }
@@ -6096,6 +6102,9 @@ void QWidgetPrivate::updateFocusChild()
 
 void QWidget::clearFocus()
 {
+    qDebug() << __FUNCTION__ << this;
+    if (objectName() ==  QLatin1String("LineEdit0_2"))
+        qDebug("clearFocusLE02");
     if (hasFocus()) {
         if (testAttribute(Qt::WA_InputMethodEnabled))
             qApp->inputMethod()->commit();
@@ -6106,8 +6115,10 @@ void QWidget::clearFocus()
 
     QWidget *w = this;
     while (w) {
-        if (w->d_func()->focus_child == this)
+        if (w->d_func()->focus_child == this) {
+            qDebug() << "Clearing focus child" << w;
             w->d_func()->focus_child = 0;
+        }
         w = w->parentWidget();
     }
 #ifndef QT_NO_GRAPHICSVIEW
diff --git a/src/widgets/widgets/qmdisubwindow.cpp b/src/widgets/widgets/qmdisubwindow.cpp
index 9104074..9a7a56e 100644
--- a/src/widgets/widgets/qmdisubwindow.cpp
+++ b/src/widgets/widgets/qmdisubwindow.cpp
@@ -960,8 +960,10 @@ void QMdiSubWindowPrivate::_q_enterInteractiveMode()
 */
 void QMdiSubWindowPrivate::_q_processFocusChanged(QWidget *old, QWidget *now)
 {
+
     Q_UNUSED(old);
     Q_Q(QMdiSubWindow);
+    qDebug() << __FUNCTION__ <<  q << "old=" << old << "now=" << now;
     if (now && (now == q || q->isAncestorOf(now))) {
         if (now == q && !isInInteractiveMode)
             setFocusWidget();
@@ -1416,6 +1418,7 @@ void QMdiSubWindowPrivate::setMaximizeMode()
 void QMdiSubWindowPrivate::setActive(bool activate, bool changeFocus)
 {
     Q_Q(QMdiSubWindow);
+    qDebug() << __FUNCTION__ << q << "activate=" << activate <<"changeFocus" << changeFocus;
     if (!parent || !activationEnabled)
         return;
 
@@ -1437,8 +1440,10 @@ void QMdiSubWindowPrivate::setActive(bool activate, bool changeFocus)
         q->overrideWindowState(q->windowState() & ~Qt::WindowActive);
         if (changeFocus) {
             QWidget *focusWidget = QApplication::focusWidget();
-            if (focusWidget && (focusWidget == q || q->isAncestorOf(focusWidget)))
+            if (focusWidget && (focusWidget == q || q->isAncestorOf(focusWidget))) {
+                qDebug() << __FUNCTION__ << "Clear focus" << focusWidget;
                 focusWidget->clearFocus();
+            }
         }
         if (baseWidget)
             baseWidget->overrideWindowState(baseWidget->windowState() & ~Qt::WindowActive);
@@ -2006,11 +2011,14 @@ void QMdiSubWindowPrivate::updateActions()
 
 void QMdiSubWindowPrivate::setFocusWidget()
 {
+
     Q_Q(QMdiSubWindow);
+    qDebug() << __FUNCTION__ << q ;
     if (!baseWidget) {
         q->setFocus();
         return;
     }
+    qDebug() << __FUNCTION__ << "focus of base" << baseWidget->focusWidget() << "base=" << baseWidget;
 
     // This will give focus to the next child if possible, otherwise
     // do nothing, hence it's not possible to tab between windows with
@@ -2026,10 +2034,12 @@ void QMdiSubWindowPrivate::setFocusWidget()
         return;
     }
 
+
     if (QWidget *focusWidget = baseWidget->focusWidget()) {
         if (!focusWidget->hasFocus() && q->isAncestorOf(focusWidget)
                 && focusWidget->isVisible() && !q->isMinimized()
                 && focusWidget->focusPolicy() != Qt::NoFocus) {
+            qDebug() << __FUNCTION__ <<  q << "focussing" << focusWidget;
             focusWidget->setFocus();
         } else {
             q->setFocus();
@@ -2038,11 +2048,14 @@ void QMdiSubWindowPrivate::setFocusWidget()
     }
 
     QWidget *focusWidget = q->nextInFocusChain();
-    while (focusWidget && focusWidget != q && focusWidget->focusPolicy() == Qt::NoFocus)
+    while (focusWidget && focusWidget != q && focusWidget->focusPolicy() == Qt::NoFocus) {
+        qDebug() << __FUNCTION__ << q << "looping" << focusWidget;
         focusWidget = focusWidget->nextInFocusChain();
-    if (focusWidget && q->isAncestorOf(focusWidget))
+    }
+    if (focusWidget && q->isAncestorOf(focusWidget)) {
+        qDebug() << __FUNCTION__ << q << "calling setFocus" << focusWidget ;
         focusWidget->setFocus();
-    else if (baseWidget->focusPolicy() != Qt::NoFocus)
+    } else if (baseWidget->focusPolicy() != Qt::NoFocus)
         baseWidget->setFocus();
     else if (!q->hasFocus())
         q->setFocus();