Ok może precyzyjniej
po instalacji sh et-linux-2.60.x86.run

Pyta mnie czy uruchomić grę potwierdzam i

Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified

Error couldn't open the X display
...WARNING: could not set the given mode (4)
Initializing OpenGL display
...setting ...

Po poleceniu:
wget http://ftp.freenet.de/pub/4players/hosted/et/official/et-linux-2.60.x86.run


Pojawia mi się komunikat:
Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified

Error couldn't open the X display
...WARNING: could not set the given mode (4)
Initializing OpenGL ...