message: Make sure the "start-lumina-desktop" routine will detect/adjust the X11 Display on demand
diff: #define DEBUG 0
  int findAvailableSession(){
  int num = 0;
  - while(!QFile::exists("/tmp/.X11-unix/X"+QString::number(num))){ num++; }
  + while(QFile::exists("/tmp/.X11-unix/X"+QString::number(num))){ num++; }
  return num;
  }
  