From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Eric Abrahamsen Newsgroups: gmane.emacs.devel Subject: Re: Text garbling Date: Mon, 23 Mar 2020 21:35:27 -0700 Message-ID: <878sjql69c.fsf@ericabrahamsen.net> References: <87lfnqlesy.fsf@ericabrahamsen.net> <838sjqbfb1.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="122506"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) To: emacs-devel@gnu.org Cancel-Lock: sha1:0PIVPjMwdKG8ixCn0McZjSCeP4w= Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Mar 24 05:36:12 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 1jGbIR-000VmV-Pe for ged-emacs-devel@m.gmane-mx.org; Tue, 24 Mar 2020 05:36:11 +0100 Original-Received: from localhost ([::1]:42638 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jGbIQ-0004gl-Qx for ged-emacs-devel@m.gmane-mx.org; Tue, 24 Mar 2020 00:36:10 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:59971) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jGbHr-0004Gn-Qf for emacs-devel@gnu.org; Tue, 24 Mar 2020 00:35:36 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jGbHq-00036c-NB for emacs-devel@gnu.org; Tue, 24 Mar 2020 00:35:35 -0400 Original-Received: from ciao.gmane.io ([159.69.161.202]:48794) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1jGbHq-00033Q-Gh for emacs-devel@gnu.org; Tue, 24 Mar 2020 00:35:34 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1jGbHo-000V3P-Ih for emacs-devel@gnu.org; Tue, 24 Mar 2020 05:35:32 +0100 X-Injected-Via-Gmane: http://gmane.org/ X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 159.69.161.202 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:245751 Archived-At: Eli Zaretskii writes: >> 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. Yuck, I would never have suspected that the video driver could interfere here. I think since switching to wayland I might just be able to remove the xf86-video-intel package, that might have something to do with it. Thanks, Eric