From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: Text garbling Date: Tue, 24 Mar 2020 05:30:10 +0200 Message-ID: <838sjqbfb1.fsf@gnu.org> References: <87lfnqlesy.fsf@ericabrahamsen.net> Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="94040"; mail-complaints-to="usenet@ciao.gmane.io" Cc: emacs-devel@gnu.org To: Eric Abrahamsen Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Mar 24 04:30:40 2020 Return-path: 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 ) id 1jGaH2-000OMk-9X for ged-emacs-devel@m.gmane-mx.org; Tue, 24 Mar 2020 04:30:40 +0100 Original-Received: from localhost ([::1]:42114 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jGaH1-0000Ot-Ac for ged-emacs-devel@m.gmane-mx.org; Mon, 23 Mar 2020 23:30:39 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:51231) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jGaGR-0008LB-PN for emacs-devel@gnu.org; Mon, 23 Mar 2020 23:30:04 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:40507) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1jGaGR-000588-HX; Mon, 23 Mar 2020 23:30:03 -0400 Original-Received: from [176.228.60.248] (port=4968 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1jGaGQ-0001yj-C5; Mon, 23 Mar 2020 23:30:02 -0400 In-Reply-To: <87lfnqlesy.fsf@ericabrahamsen.net> (message from Eric Abrahamsen on Mon, 23 Mar 2020 18:30:53 -0700) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:245748 Archived-At: > From: Eric Abrahamsen > Date: Mon, 23 Mar 2020 18:30:53 -0700 > > Look at the exciting thing that happened to my Emacs this afternoon! A > few letters were switched out for other letters, and most numbers went > "off". This happened as I set off a list-package upgrade, switched away > to a different program, and then switched back. > > https://ericabrahamsen.net/garbled.jpg > > In that screenshot I'd done "C-u C-x =" on a capital "R", which was > displaying as a capital "P". > > I'm running Emacs master on Arch linux, using the Wayland protocol with > the sway window manager. > > Everything seemed to work fine (including input), just text displayed > wrong. > > It went away after a restart. I guess I'd be surprised if the problem > came back, and I'm not really expecting any bug hunting here. But I > thought it might be useful to log what happened. Happy to provide any > other information of interest. My bet is on some "optimization" feature of your video driver that is buggy. Upgrading or downgrading that driver might help.