Fixed: 0x0 is Auto mode

--HG--
branch : develop

code/ryzom/tools/client/client_config_qt/display_settings_widget.cpp

@@ -166,7 +166,18 @@ void CDisplaySettingsWidget::updateVideoModes()
 
 	while(itr != iend)
 	{
-		videomodeComboBox->addItem(QString("%1x%2 %3 bit @%4").arg(itr->width).arg(itr->height).arg(itr->depth).arg(itr->frequency));
+		if (itr->frequency)
+		{
+			videomodeComboBox->addItem(QString("%1x%2 %3 bit @%4").arg(itr->width).arg(itr->height).arg(itr->depth).arg(itr->frequency));
+		}
+		else if (itr->width)
+		{
+			videomodeComboBox->addItem(QString("%1x%2 %3 bit").arg(itr->width).arg(itr->height).arg(itr->depth));
+		}
+		else
+		{
+			videomodeComboBox->addItem(tr("Auto"));
+		}
 
 		++itr;
 	}

code/ryzom/tools/client/client_config_qt/system.cpp

@@ -160,6 +160,16 @@ void CSystem::GetVideoModes( std::vector< CVideoMode > &dst, NL3D::IDriver *driv
 	std::vector< NL3D::GfxMode > modes;
 	driver->getModes( modes );
 
+	{
+		// auto mode
+		CVideoMode mode;
+		mode.depth = 0;
+		mode.width = 0;
+		mode.height = 0;
+		mode.frequency = 0;
+		dst.push_back( mode );
+	}
+
 	for( std::vector< NL3D::GfxMode >::iterator itr = modes.begin(); itr != modes.end(); ++itr )
 	{
 		if( ( itr->Width >= 800 ) && ( itr->Height >= 600 ) && ( itr->Depth >= 16 ) )