>> Hi, >> >> when trying to run an X11 program, I get the following error message: >> >> (putty:8198): Gtk-WARNING **: 00:06:49.190: cannot open display: :0 >> >> How can I fix that? > > Assuming you are running Mac OS X 10.5 or later: > > Check your .zprofile or .profile or .bash_profile for a line like: > > DISPLAY=:0 > > Delete it. > > The MacPorts 2.6.4 installer for macOS 11 erroneously added this line. This > problem has been fixed in newer versions of the MacPorts installer but any > erroneous DISPLAY line added by the 2.6.4 installer needs to be removed > manually.
Now xorg-server is starting and quiting. The app does not appear. What could be the problem?
