[qt4] 디바이스들 초기화 하기

  QWSServer *server = QWSServer::instance();

  if (server)
  {
            QScreen *screen = QScreen::instance();
            screen->shutdownDevice();
            screen->disconnect();
            screen->connect("/dev/fb");
            screen->initDevice();
            server->enablePainting( true );
            server->refresh();
  }