I'm hopeing you can help me with this. I've been tasked with transfering some software from I've developed from my linux laptop to a fresh linux install. The fresh install is going to be provided as an ISO to our customers, so we wanted it to be very minimalist with only the programs nessesary to run our software.
Anyways I finished installing everything and try to run my program but I get the complaint that I can't open display. In fact I am told that I can't open display for anything with grapics. I was running as root originally which a google search suggests can cause trouble, but when I su to a regular user I get the same problem.
and a list of things I've tried from google searches: When I try to run xhost +localhost (or any variant) I get the same complaint about opening display. if i do a xauth list localhost.localdomain is the only thing listed. I guess that I should add somethign here but I don't know how.
When I ran the redhat install I intentionally did not install gnome to keep the install as small as possible. I don't explicitly recall selecting any display manager to install, although I may have chosen the defualt for Redhat. It may be that I don't have a display manager installed at all. How would I even determine that?
Anyways any help would be appreciated. I've picked up a few things about linux but I'm still a bit of a newbie, always end up needing help from people smarter then me