From mboxrd@z Thu Jan  1 00:00:00 1970
Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail
From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: emacs pgtk doesn't set WAYLAND-DISPLAY
Date: Thu, 15 Feb 2024 12:09:34 +0200
Message-ID: <86frxuvy1t.fsf@gnu.org>
References: <87sf23rktf.fsf@free.fr> <86ttmaw3rt.fsf@gnu.org>
 <874jeaywo6.fsf@yahoo.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit
Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214";
	logging-data="13700"; mail-complaints-to="usenet@ciao.gmane.io"
Cc: j.cubizolles@free.fr, emacs-devel@gnu.org
To: Po Lu <luangruo@yahoo.com>
Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Thu Feb 15 11:10:15 2024
Return-path: <emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org>
Envelope-to: ged-emacs-devel@m.gmane-mx.org
Original-Received: from lists.gnu.org ([209.51.188.17])
	by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
	(Exim 4.92)
	(envelope-from <emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org>)
	id 1raYh5-0003RJ-J6
	for ged-emacs-devel@m.gmane-mx.org; Thu, 15 Feb 2024 11:10:15 +0100
Original-Received: from localhost ([::1] helo=lists1p.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.90_1)
	(envelope-from <emacs-devel-bounces@gnu.org>)
	id 1raYgV-0002nZ-2I; Thu, 15 Feb 2024 05:09:39 -0500
Original-Received: from eggs.gnu.org ([2001:470:142:3::10])
 by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
 (Exim 4.90_1) (envelope-from <eliz@gnu.org>) id 1raYgT-0002nB-9f
 for emacs-devel@gnu.org; Thu, 15 Feb 2024 05:09:37 -0500
Original-Received: from fencepost.gnu.org ([2001:470:142:3::e])
 by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
 (Exim 4.90_1) (envelope-from <eliz@gnu.org>)
 id 1raYgS-0004z3-Se; Thu, 15 Feb 2024 05:09:36 -0500
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org;
 s=fencepost-gnu-org; h=MIME-version:References:Subject:In-Reply-To:To:From:
 Date; bh=ayWesN7ogdw6LCg2flmqkAujZ+Fgt+3t3Umqs3E1i6I=; b=FrpN0LaSmzQf7+BzmrSu
 SmEy/DZWqMlFMlkTY1MKerGODlgFDrMTUmeIal30j98TEHwiTj4TShuxUwhSZgij4utf+irt9eSyf
 hpXAeZXIRKnCPPGcGyIdTDs+PfgfxONeEiPFuG+Fw1R4DXB8zUxc6oPLBXMUeiXqH+vfmbyzMiT4f
 PeY0uQISWV15EH7TJvZWClLESqFqwMvOnGXsy1S3aGLwaq5FVxjwLmVbUos6oaMF6z9G8BKS2Bcvw
 nKJPC+IQbm9sBTrMm/QedYC046Z9CNvZtJcwQNiJcGYuSCWPQATzbjxVPSSHABAm9uCxf+zFVUQkS
 PBAj6HP3FgANEw==;
In-Reply-To: <874jeaywo6.fsf@yahoo.com> (message from Po Lu on Thu, 15 Feb
 2024 16:11:05 +0800)
X-BeenThere: emacs-devel@gnu.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "Emacs development discussions." <emacs-devel.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/emacs-devel>,
 <mailto:emacs-devel-request@gnu.org?subject=unsubscribe>
List-Archive: <https://lists.gnu.org/archive/html/emacs-devel>
List-Post: <mailto:emacs-devel@gnu.org>
List-Help: <mailto:emacs-devel-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/emacs-devel>,
 <mailto:emacs-devel-request@gnu.org?subject=subscribe>
Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org
Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org
Xref: news.gmane.io gmane.emacs.devel:316226
Archived-At: <http://permalink.gmane.org/gmane.emacs.devel/316226>

> From: Po Lu <luangruo@yahoo.com>
> Cc: Julien Cubizolles <j.cubizolles@free.fr>,  emacs-devel@gnu.org
> Date: Thu, 15 Feb 2024 16:11:05 +0800
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> >> From: Julien Cubizolles <j.cubizolles@free.fr>
> >> Date: Thu, 08 Feb 2024 17:18:36 +0100
> >> 
> >> In Wayland, the following environment variables are set in a shell
> >> 
> >> WAYLAND_DISPLAY=wayland-0
> >> DISPLAY=:0
> >> 
> >> In Emacs built with pgtk, only DISPLAY is set, with
> >> DISPLAY=wayland-0.
> >> 
> >> I don't know if there is a good reason for that but it causes the
> >> matplotlib python program to fail as it seems to expect a "valid" value
> >> for DISPLAY or WAYLAND_DISPLAY to be set (see
> >> https://github.com/matplotlib/matplotlib/issues/18377).
> >> 
> >> Maybe Emacs could just copy both the WAYLAND_DISPLAY and DISPLAY
> >> environment variables instead of merging both ?
> >
> > Po Lu, any suggestions or comments?
> 
> I think this is was Emacs's treatment of WAYLAND_DISPLAY until we
> received several bug reports that couldn't be resolved except by
> refraining from changing that variable.

Can you point to some of those bug reports?