Index: greeter/greeterapp.cpp
===================================================================
--- greeter/greeterapp.cpp
+++ greeter/greeterapp.cpp
@@ -451,6 +451,8 @@
     if (!w) { // fallback solution
         w = m_views.first();
     }
+    if (!m_testing & w->flags().testFlag(Qt::X11BypassWindowManagerHint))
+        w->setFlags(w->flags() | ~Qt::X11BypassWindowManagerHint);
     // activate window and grab input to be sure it really ends up there.
     // focus setting is still required for proper internal QWidget state (and eg. visual reflection)
     if (!m_testing) {