From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#29078: 25.2; font issue with FreeType 2.8; should not use the rounded ascender and descender Date: Mon, 18 Nov 2019 19:09:37 +0200 Message-ID: <83pnhp2jse.fsf@gnu.org> References: <87d153pqw0.fsf@cventin.lip.ens-lyon.fr> <87ftinaq1h.fsf@gnus.org> <20191118074714.GB27349@zira.vinc17.org> <83d0dp42nx.fsf@gnu.org> <20191118160441.GD2742@cventin.lip.ens-lyon.fr> Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="219632"; mail-complaints-to="usenet@blaine.gmane.org" Cc: larsi@gnus.org, 29078@debbugs.gnu.org To: Vincent Lefevre Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Nov 18 18:10:19 2019 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1iWkXb-000v1F-0X for geb-bug-gnu-emacs@m.gmane.org; Mon, 18 Nov 2019 18:10:19 +0100 Original-Received: from localhost ([::1]:37296 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iWkXZ-0002jl-Ji for geb-bug-gnu-emacs@m.gmane.org; Mon, 18 Nov 2019 12:10:17 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:54270) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iWkXL-0002h3-KC for bug-gnu-emacs@gnu.org; Mon, 18 Nov 2019 12:10:05 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iWkXK-0005zu-K0 for bug-gnu-emacs@gnu.org; Mon, 18 Nov 2019 12:10:03 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:37332) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1iWkXK-0005zg-7R for bug-gnu-emacs@gnu.org; Mon, 18 Nov 2019 12:10:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1iWkXJ-0005iY-WC for bug-gnu-emacs@gnu.org; Mon, 18 Nov 2019 12:10:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 18 Nov 2019 17:10:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 29078 X-GNU-PR-Package: emacs Original-Received: via spool by 29078-submit@debbugs.gnu.org id=B29078.157409698321946 (code B ref 29078); Mon, 18 Nov 2019 17:10:01 +0000 Original-Received: (at 29078) by debbugs.gnu.org; 18 Nov 2019 17:09:43 +0000 Original-Received: from localhost ([127.0.0.1]:46153 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1iWkX1-0005hu-0A for submit@debbugs.gnu.org; Mon, 18 Nov 2019 12:09:43 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:45103) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1iWkWy-0005hb-1M for 29078@debbugs.gnu.org; Mon, 18 Nov 2019 12:09:41 -0500 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:57766) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1iWkWs-0005om-Kp; Mon, 18 Nov 2019 12:09:34 -0500 Original-Received: from [176.228.60.248] (port=3930 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1iWkWs-0005ku-2v; Mon, 18 Nov 2019 12:09:34 -0500 In-reply-to: <20191118160441.GD2742@cventin.lip.ens-lyon.fr> (message from Vincent Lefevre on Mon, 18 Nov 2019 17:04:41 +0100) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.51.188.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:171918 Archived-At: > Date: Mon, 18 Nov 2019 17:04:41 +0100 > From: Vincent Lefevre > Cc: larsi@gnus.org, 29078@debbugs.gnu.org > > I've attached screenshots I had done on 2017-10-31 (it seems that > I forgot to send them after my bug report). > > This is a GNU Emacs 25 window obtained with > > emacs -Q -fn Mono-10 --geometry 80x16 box-drawing.txt > > with libfreetype6 2.6.3-3.2 (emacs-263.png, what is expected) and > 2.8.1-0.1 (emacs-281.png, buggy). The behavior with a GNU Emacs > 27.0.50 snapshot from August 2019 and libfreetype6 2.10.1-2 seems > identical to emacs-281.png (i.e. nothing has improved). > > According to fc-match, Mono-10 corresponds to > > DejaVuSansMono.ttf: "DejaVu Sans Mono" "Book" > > Other fonts show the same issue. Thanks. But now I'm not sure there's a bug here. You evidently expect the lines of the box-drawing characters to join without gaps, but I'm not sure what this expectation is based on. For example, Emacs on MS-Windows doesn't use FreeType, but with a completely different font I see the gaps here as well. The fact that older versions of FreeType produced different display doesn't yet mean that display was correct and the current one isn't. So I'm inclined to argue that there's no bug here. What am I missing?