From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Dale Sedivec Newsgroups: gmane.emacs.bugs Subject: bug#42653: Emacs now recentering very aggressively Date: Thu, 10 Sep 2020 16:18:55 -0500 Message-ID: <3CEF44D3-EBBB-4F8E-99E0-0CB4A1010707@codefu.org> References: <87r1sqtzsy.fsf@nivekuil.com> Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.15\)) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="30119"; mail-complaints-to="usenet@ciao.gmane.io" To: 42653@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Thu Sep 10 23:20:14 2020 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 1kGTzJ-0007hM-Jv for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 10 Sep 2020 23:20:13 +0200 Original-Received: from localhost ([::1]:45990 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kGTzI-0005Rp-M4 for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 10 Sep 2020 17:20:12 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:46660) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kGTzA-0005OD-1h for bug-gnu-emacs@gnu.org; Thu, 10 Sep 2020 17:20:04 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:58138) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kGTz9-0003tC-Nw for bug-gnu-emacs@gnu.org; Thu, 10 Sep 2020 17:20:03 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1kGTz9-0006qb-JK for bug-gnu-emacs@gnu.org; Thu, 10 Sep 2020 17:20:03 -0400 X-Loop: help-debbugs@gnu.org In-Reply-To: <87r1sqtzsy.fsf@nivekuil.com> Resent-From: Dale Sedivec Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 10 Sep 2020 21:20:03 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 42653 X-GNU-PR-Package: emacs Original-Received: via spool by 42653-submit@debbugs.gnu.org id=B42653.159977274526193 (code B ref 42653); Thu, 10 Sep 2020 21:20:03 +0000 Original-Received: (at 42653) by debbugs.gnu.org; 10 Sep 2020 21:19:05 +0000 Original-Received: from localhost ([127.0.0.1]:41443 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kGTyD-0006oP-1D for submit@debbugs.gnu.org; Thu, 10 Sep 2020 17:19:05 -0400 Original-Received: from mail-io1-f46.google.com ([209.85.166.46]:36760) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1kGTyA-0006nn-4S for 42653@debbugs.gnu.org; Thu, 10 Sep 2020 17:19:03 -0400 Original-Received: by mail-io1-f46.google.com with SMTP id d190so8817688iof.3 for <42653@debbugs.gnu.org>; Thu, 10 Sep 2020 14:19:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=codefu-org.20150623.gappssmtp.com; s=20150623; h=from:content-transfer-encoding:mime-version:subject:message-id:date :to; bh=zOxApt+WcDc1S9nqxUCoZUcGnaAoHw0v8eH/TGcKvqY=; b=mjJONGO3qQ1JZpw9IibF6qWQMkOapgFS8gRCMHfA/jBA+05wU57+daad9325d7jT0u DkGiQy32T3BmwH1sYWJBRlOMlI7EMo7uGIRMpItstecWnxJ0/ktBCNOpUjVlOadNESlY +tacBZVVoMQohBsjJufaqSyPoiPIoUw77KLQ9CtN0QO1DSoDvBI4h9MEuN73j2zb7tZf LkAVTeuC1kxZ9qaSWTTnuvLIaRMBeMuhNiv8sIywiJ3fYp6AGEALgBDs6EwpkmqOxKb2 4ycTgwEC4rBTefoSQQkJegwgUQGt7DcRKdZbzBQ7WL762jupT3gkNzJerAIpCpnAcv26 RF9A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:content-transfer-encoding:mime-version :subject:message-id:date:to; bh=zOxApt+WcDc1S9nqxUCoZUcGnaAoHw0v8eH/TGcKvqY=; b=aI7fuzOgX39WE1h0JHl4Ri7ObmEXz8EyRAL5+7qwyn5KogJO1hf0BoFZ4xARMuupAy NgIVUPB1SdG3NUN9+fRCFA9jAR9XGxZMK0kVJhUxKXsFAu/Lgj6M6/kebsJUbBnVA/qd Nw6Cv5aWb9vZqTw6UNko6SlRhZ2RrInZ/LiR4DlPSDIKKz7XV1oGC5BFtk6juFs4KDhc TcgkbsS8btH4CEu6CLm9K8pCzIc+XYsdJ88kVv18jypDq5BJdBso+E1S/C5pGtocNBRH /v01C1Mebp/e8ugEiSvvqOeg1zCiSt6taAq3f4RHKh/wo8FzMimP3tcK2kBPKk3a9F/L iJ/g== X-Gm-Message-State: AOAM531OIyJs2H4mVmloi4AC+DGOUuF38ifFVJqcXG4dNuLu/cNVBkgs FRXGfnuHTfkff6Eo9C69Rv4rfV+yXF5O71FF X-Google-Smtp-Source: ABdhPJwYYmyl730KQcpskHvvZo8OnqOuZi/Ze4Mc543+nZtmWSSLtlYYXELYZhw2R+7ITi1KvGcwqg== X-Received: by 2002:a05:6602:150c:: with SMTP id g12mr9395510iow.173.1599772736077; Thu, 10 Sep 2020 14:18:56 -0700 (PDT) Original-Received: from dale.caliginous.net (152.160.30.136.in-addr.arpa. [136.30.160.152]) by smtp.gmail.com with ESMTPSA id j62sm127009iof.53.2020.09.10.14.18.55 for <42653@debbugs.gnu.org> (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Thu, 10 Sep 2020 14:18:55 -0700 (PDT) X-Mailer: Apple Mail (2.3445.104.15) 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:187775 Archived-At: Hi, as of commit a07ec21bf24b, which is said to address bug #42653, = Emacs started recentering as I scroll up. Here's a minimal reproduction = case: 1. emacs -Q 2. Display anything in the header line: (setq-default header-line-format = "foo") 3. Open any file longer than a few screenfuls: M-x find-library RET subr = RET 4. Enable which-function-mode: M-x which-function-mode RET (display-line-numbers-mode also triggers this problem, but I find = which-function-mode more interesting since it doesn't change the display = of the buffer at all, only the mode line.) 5. M-> (end-of-buffer) 6. Page up a few times with M-v (scroll-down-command) Expected behavior: Point is sitting at the bottom line of the window no = matter how many times you page up Observed behavior: The window is recentered, usually after ever page up, = with a slight delay Here's a video of this behavior, in case it helps: = https://www.dropbox.com/s/i7m2h9ltwrpxxy3/emacs_scrolling.mp4?dl=3D0 emacs-version: GNU Emacs 28.0.50 (build 1, x86_64-apple-darwin18.7.0, NS = appkit-1671.60 Version 10.14.6 (Build 18G6020)) of 2020-09-10 I built this today from master, 70a8d06fe1. I can stop this from happening with (setq scroll-conservatively 101), so = perhaps the behavior is intentional? However, the fact that point stays = at the bottom of the window for a brief instant, and then only recenters = when (I am **guessing**) which-func-update runs leads me to believe this = is unintentional behavior. Please let me know if you need any more information. Regards, Dale=