From owner-freebsd-questions  Sun Jul 27 06:30:04 1997
Return-Path: <owner-freebsd-questions>
Received: (from root@localhost)
          by hub.freebsd.org (8.8.5/8.8.5) id GAA05112
          for questions-outgoing; Sun, 27 Jul 1997 06:30:04 -0700 (PDT)
Received: from whqvax.picker.com (whqvax.picker.com [144.54.1.1])
          by hub.freebsd.org (8.8.5/8.8.5) with SMTP id GAA05076
          for <freebsd-questions@FreeBSD.ORG>; Sun, 27 Jul 1997 06:30:00 -0700 (PDT)
Received: from ct.picker.com by whqvax.picker.com with SMTP;
          Sun, 27 Jul 1997 9:29:28 -0400 (EDT)
Received: from elmer.ct.picker.com ([144.54.57.34]) by ct.picker.com (4.1/SMI-4.1)
	id AA21966; Sun, 27 Jul 97 09:29:26 EDT
Received: by elmer.ct.picker.com (SMI-8.6/SMI-SVR4)
	id JAA03386; Sun, 27 Jul 1997 09:27:08 -0400
Message-Id: <19970727092707.14850@ct.picker.com>
Date: Sun, 27 Jul 1997 09:27:07 -0400
From: Randall Hopper <rhh@ct.picker.com>
To: "Chris F." <theta@gte.net>
Cc: freebsd-questions@FreeBSD.ORG
Subject: Re: XWindows:  Can't open display:
References: <199707261927.OAA24580@smtp.gte.net>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
X-Mailer: Mutt 0.76
In-Reply-To: <199707261927.OAA24580@smtp.gte.net>; from Chris F. on Sat, Jul 26, 1997 at 02:27:29PM -0500
Sender: owner-freebsd-questions@FreeBSD.ORG
X-Loop: FreeBSD.org
Precedence: bulk

Chris F.:
 |I am using FreeBSD 2.2.2.  When running Xwindows applications I get the
 |following error:
 |
 |(When I don't set the display variable)
 |
 |Error: Can't open display:
 |
 |(When I set it to :0)
 |
 |Error: Can't open display: :0
 |
 |I don't know what I should set my display variable to.  I have tried setting
 |it to :0, unix:0, unix:0.0, as they were suggested in archived mailing list
 |messages.  None of them caused any different results.  Please copy all
 |suggestions to me at theta@gte.net. 

Where are you running the X apps from?  Cmd line in Xterms?  Pull-down menu
in window manager?  

Run "xhost" and note the output.  Then run "xhost +" (for testing only) and
see if starting an X app that failed before with that error will come up now.

Also, if running from inside an xterm, verify correct syntax for setting an
env var for your shell:

      "setenv DISPLAY :0.0"         for tcsh/csh, or
      "DISPLAY=:0.0 export DISPLAY" for sh/ksh/bash

Randall Hopper