From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#47498: 28.0.50; follow-mode misses a line with tiling window manager Date: Tue, 30 Mar 2021 15:56:00 +0300 Message-ID: <83wntokdgf.fsf@gnu.org> References: Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="17337"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 47498@debbugs.gnu.org To: Stefan Kangas Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Tue Mar 30 15:03:20 2021 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1lRE1g-0004Od-Oo for geb-bug-gnu-emacs@m.gmane-mx.org; Tue, 30 Mar 2021 15:03:20 +0200 Original-Received: from localhost ([::1]:36116 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lRE1f-00053K-RG for geb-bug-gnu-emacs@m.gmane-mx.org; Tue, 30 Mar 2021 09:03:19 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:33880) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lRDva-0000sM-Jy for bug-gnu-emacs@gnu.org; Tue, 30 Mar 2021 08:57:02 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:39036) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lRDva-0004Tr-BL for bug-gnu-emacs@gnu.org; Tue, 30 Mar 2021 08:57:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1lRDva-0006ui-8p for bug-gnu-emacs@gnu.org; Tue, 30 Mar 2021 08:57:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 30 Mar 2021 12:57:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 47498 X-GNU-PR-Package: emacs Original-Received: via spool by 47498-submit@debbugs.gnu.org id=B47498.161710896926494 (code B ref 47498); Tue, 30 Mar 2021 12:57:02 +0000 Original-Received: (at 47498) by debbugs.gnu.org; 30 Mar 2021 12:56:09 +0000 Original-Received: from localhost ([127.0.0.1]:50582 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lRDuj-0006tG-3O for submit@debbugs.gnu.org; Tue, 30 Mar 2021 08:56:09 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:40660) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lRDue-0006sq-Mb for 47498@debbugs.gnu.org; Tue, 30 Mar 2021 08:56:06 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:36536) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lRDuZ-0003mw-0p; Tue, 30 Mar 2021 08:55:59 -0400 Original-Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:3107 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1lRDuP-0006wc-AV; Tue, 30 Mar 2021 08:55:57 -0400 In-Reply-To: (message from Stefan Kangas on Tue, 30 Mar 2021 12:30:42 +0000) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list 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-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:203295 Archived-At: > From: Stefan Kangas > Date: Tue, 30 Mar 2021 12:30:42 +0000 > > I see one hidden line when using follow-mode. > > Steps to reproduce: > > 0. emacs -Q > 1. C-h i > 2. C-x 2 > 3. M-x follow-mode RET > > There is now one line missing from the display. When using > `display-line-numbers-mode', this effect is more obvious. >From my POV, follow-mode's design is fundamentally flawed, when variable-size fonts and fractional line display are considered. It attempts to solve several problems that cannot be solved in principle, unless the only font on display is the default face's font, and the windows display an integral number of text lines. It's a small wonder in my eyes that display problems caused by follow-mode are so minor, even subtle. My advice is to stay away of it, if you want perfect display.