q how to avoid xopendisplay hang i m writing xwall a simple x version of wall and i want it to put a message up on each of a default list of displays the problem is that xopendisplay hangs if one of the displays is currently controlled by xdm login screen i ve been through the manuals and faq and don t see a simple way to see if a display is openable ahead of time or to get xopendisplay to fail after a short period of time any hints suggestions clues or pointers to info thanks andy moore andy ice stx com you could say i ve lost faith in the politicians they all seem like game show hosts to me sting
