From owner-freebsd-questions@FreeBSD.ORG  Sat Sep  6 08:11:23 2003
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 7950516A4BF
	for <freebsd-questions@freebsd.org>;
	Sat,  6 Sep 2003 08:11:23 -0700 (PDT)
Received: from troutmask.apl.washington.edu (troutmask.apl.washington.edu
	[128.208.78.105])
	by mx1.FreeBSD.org (Postfix) with ESMTP id CDD2E43FDD
	for <freebsd-questions@freebsd.org>;
	Sat,  6 Sep 2003 08:11:22 -0700 (PDT)
	(envelope-from kargl@troutmask.apl.washington.edu)
Received: from troutmask.apl.washington.edu (localhost [127.0.0.1])
	h86FBMuo065336;	Sat, 6 Sep 2003 08:11:22 -0700 (PDT)
	(envelope-from kargl@troutmask.apl.washington.edu)
Received: (from kargl@localhost)h86FBLep065335;
	Sat, 6 Sep 2003 08:11:21 -0700 (PDT)
From: "Steven G. Kargl" <kargl@troutmask.apl.washington.edu>
Message-Id: <200309061511.h86FBLep065335@troutmask.apl.washington.edu>
In-Reply-To: <20030906120317.GA78469@happy-idiot-talk.infracaninophile.co.uk>
To: Matthew Seaman <m.seaman@infracaninophile.co.uk>
Date: Sat, 6 Sep 2003 08:11:21 -0700 (PDT)
X-Mailer: ELM [version 2.4ME+ PL99f (25)]
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Type: text/plain; charset=US-ASCII
cc: freebsd-questions@freebsd.org
Subject: Re: PAM, X11, and su as a normal user?
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>,
	<mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>,
	<mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 06 Sep 2003 15:11:23 -0000

Matthew Seaman wrote:
> 
> If all your X sessions are local to you machine (and possibly even if
> they aren't), then try setting the DISPLAY variable to :0.0 -- you'll
> need to repeat the fun'n'games with xauth to match the new $DISPLAY
> setting.

Thanks for the hint.  I took the rather draconian action of
deleting user sgk's .Xauthority file.  Then I used xauth to
merge in user kargl's entire .Xauthority.  This appears to 
work only if I use "su -l sgk".  I guess I'm inheriting
something in the environment that X doesn't lik when I 
use "su sgk".

BTW, I had no problems with this until a few months ago.
At that point in time /etc/pam.d/system was added to PAM.
The cvs log message suggests to me that PAM is somehow
involved because it was stated that a misconfigured
/etc/pam.d/system could have bad effects on login(1) and
su(1).

-- 
Steve
http://troutmask.apl.washington.edu/~kargl/