/var/dt/Xerrors 내용은 다음과 같습니다.
=>Xconnection to :0.0 broken(explicit kill or server connection)
$HOME/.dt/errorlog 내용은 다음과 같습니다.
=>Xlib : conection to "rnd31:0.0" refused by server
=>Xlib : client is not authorized to connect to server
=>Error : can't open display : rnd31:0.0
=>Error : couldn't find per display information
