2 files changed, 7 insertions, 5 deletions
diff --git a/src/gui/dialogs/qfiledialog.cpp b/src/gui/dialogs/qfiledialog.cpp
index 073c25b..2f524cb 100644
--- a/src/gui/dialogs/qfiledialog.cpp
+++ b/src/gui/dialogs/qfiledialog.cpp
@@ -96,9 +96,8 @@ Q_GUI_EXPORT _qt_filedialog_save_filename_hook qt_filedialog_save_filename_hook
   order to select one or many files or a directory.
 
   The easiest way to create a QFileDialog is to use the static
-  functions. On Windows, these static functions will call the native
-  Windows file dialog, and on Mac OS X these static function will call
-  the native Mac OS X file dialog.
+  functions. On Windows, Mac OS X, KDE and GNOME, these static functions will
+  call the native file dialog when possible.
 
   \snippet doc/src/snippets/code/src_gui_dialogs_qfiledialog.cpp 0
 
@@ -216,7 +215,7 @@ Q_GUI_EXPORT _qt_filedialog_save_filename_hook qt_filedialog_save_filename_hook
     are resolved.
     \value DontConfirmOverwrite Don't ask for confirmation if an existing file is selected.
     By default confirmation is requested.
-    \value DontUseNativeDialog Don't use the native file dialog. By default on Mac OS X and Windows,
+    \value DontUseNativeDialog Don't use the native file dialog. By default on Mac OS X,
     the native file dialog is used unless you use a subclass of QFileDialog that contains the
     Q_OBJECT macro.
     \value ReadOnly Indicates that the model is readonly.
@@ -2793,7 +2792,7 @@ void QFileDialogPrivate::_q_enterDirectory(const QModelIndex &index)
 {
     Q_Q(QFileDialog);
     // My Computer or a directory
-    QModelIndex sourceIndex = mapToSource(index);
+    QModelIndex sourceIndex = index.model() == proxyModel ? mapToSource(index) : index;
     QString path = sourceIndex.data(QFileSystemModel::FilePathRole).toString();
     if (path.isEmpty() || model->isDir(sourceIndex)) {
         q->setDirectory(path);
diff --git a/src/gui/dialogs/qmessagebox.cpp b/src/gui/dialogs/qmessagebox.cpp
index 456b480..5e59501 100644
--- a/src/gui/dialogs/qmessagebox.cpp
+++ b/src/gui/dialogs/qmessagebox.cpp
@@ -280,6 +280,9 @@ void QMessageBoxPrivate::updateSize()
     int hardLimit = screenSize.width() - (q->frameGeometry().width() - q->geometry().width());
 #else
     int hardLimit = qMin(screenSize.width() - 480, 1000); // can never get bigger than this
+    // on small screens allows the messagebox be the same size as the screen
+    if (screenSize.width() <= 1024)
+        hardLimit = screenSize.width();
 #endif
 #ifdef Q_WS_MAC
     int softLimit = qMin(screenSize.width()/2, 420);