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#34577: 27.0.50; Identical face specification yields different line heights on different platforms Date: Mon, 10 Jun 2019 20:03:58 +0300 Message-ID: <83sgsh9xtt.fsf@gnu.org> References: <835ztfimz0.fsf@gnu.org> <87muiptr5p.fsf@metalevel.at> Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="50801"; mail-complaints-to="usenet@blaine.gmane.org" Cc: 34577@debbugs.gnu.org To: Markus Triska Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Jun 10 19:14:59 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 1haNso-000CyI-4c for geb-bug-gnu-emacs@m.gmane.org; Mon, 10 Jun 2019 19:14:58 +0200 Original-Received: from localhost ([::1]:48468 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1haNsm-0000Uj-7Y for geb-bug-gnu-emacs@m.gmane.org; Mon, 10 Jun 2019 13:14:56 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:51363) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1haNsK-0008Pg-VT for bug-gnu-emacs@gnu.org; Mon, 10 Jun 2019 13:14:30 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1haNjM-0003aF-QP for bug-gnu-emacs@gnu.org; Mon, 10 Jun 2019 13:05:17 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:43906) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1haNjC-0003Sy-JF for bug-gnu-emacs@gnu.org; Mon, 10 Jun 2019 13:05:05 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1haNjC-0007UR-Cr for bug-gnu-emacs@gnu.org; Mon, 10 Jun 2019 13:05:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 10 Jun 2019 17:05:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 34577 X-GNU-PR-Package: emacs Original-Received: via spool by 34577-submit@debbugs.gnu.org id=B34577.156018625328729 (code B ref 34577); Mon, 10 Jun 2019 17:05:02 +0000 Original-Received: (at 34577) by debbugs.gnu.org; 10 Jun 2019 17:04:13 +0000 Original-Received: from localhost ([127.0.0.1]:57449 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1haNiO-0007TJ-NI for submit@debbugs.gnu.org; Mon, 10 Jun 2019 13:04:12 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:40652) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1haNiN-0007T7-Mc for 34577@debbugs.gnu.org; Mon, 10 Jun 2019 13:04:12 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:54798) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1haNiD-00031U-IZ; Mon, 10 Jun 2019 13:04:01 -0400 Original-Received: from [176.228.60.248] (port=4111 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1haNiD-0006kq-1I; Mon, 10 Jun 2019 13:04:01 -0400 In-reply-to: <87muiptr5p.fsf@metalevel.at> (message from Markus Triska on Mon, 10 Jun 2019 17:07:46 +0200) 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:160333 Archived-At: > From: Markus Triska > Cc: 34577@debbugs.gnu.org > Date: Mon, 10 Jun 2019 17:07:46 +0200 > > Eli Zaretskii writes: > > >> Is there a way to reliably obtain the same results on these platforms? > > > > Not when each platform has its own font back-end, no. > > As far as I can tell, xft is the font back-end that is used on both > platforms. For example, when I evaluate the following form: > > (frame-parameter nil 'font-backend) > > then on Debian, this yields: (xft x) > and on OSX, this yields: (xft) > > Is this useful to obtain consistent behaviour? Can I do anything to > configure this identically? Is more information needed to do this? I'm afraid you've exceeded the limits of my expertise on these matters. I could mumble something about differences of rounding to integral pixel values, but instead I will CC Handa-san, who might have a better idea of what is involved here.