From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#28342: 26.0.50; (OSX) Jumpy Scrolling using Trackpad Date: Wed, 06 Sep 2017 19:55:41 +0300 Message-ID: <83h8wf22cy.fsf@gnu.org> References: <225582B1-4598-4966-AE0B-4E8C153C8BF2@fastmail.com> Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1504717064 3150 195.159.176.226 (6 Sep 2017 16:57:44 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Wed, 6 Sep 2017 16:57:44 +0000 (UTC) Cc: 28342@debbugs.gnu.org, jamesn@fastmail.com, charles@aurox.ch, james@jojojames.com To: Alan Third Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Sep 06 18:57:37 2017 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dpddQ-0007OR-50 for geb-bug-gnu-emacs@m.gmane.org; Wed, 06 Sep 2017 18:57:04 +0200 Original-Received: from localhost ([::1]:37174 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dpddX-0007cE-62 for geb-bug-gnu-emacs@m.gmane.org; Wed, 06 Sep 2017 12:57:11 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:57880) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dpddR-0007c5-HL for bug-gnu-emacs@gnu.org; Wed, 06 Sep 2017 12:57:06 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dpddO-0005Hv-Ej for bug-gnu-emacs@gnu.org; Wed, 06 Sep 2017 12:57:05 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:44598) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1dpddO-0005Hh-AX for bug-gnu-emacs@gnu.org; Wed, 06 Sep 2017 12:57:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1dpddO-0006c8-4A for bug-gnu-emacs@gnu.org; Wed, 06 Sep 2017 12:57:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 06 Sep 2017 16:57:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 28342 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 28342-submit@debbugs.gnu.org id=B28342.150471697425370 (code B ref 28342); Wed, 06 Sep 2017 16:57:02 +0000 Original-Received: (at 28342) by debbugs.gnu.org; 6 Sep 2017 16:56:14 +0000 Original-Received: from localhost ([127.0.0.1]:53279 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dpdcc-0006b7-1q for submit@debbugs.gnu.org; Wed, 06 Sep 2017 12:56:14 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:38457) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dpdca-0006au-0F for 28342@debbugs.gnu.org; Wed, 06 Sep 2017 12:56:12 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dpdcR-0003gZ-Nc for 28342@debbugs.gnu.org; Wed, 06 Sep 2017 12:56:06 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:54667) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dpdcB-00039b-HW; Wed, 06 Sep 2017 12:55:47 -0400 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:1088 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1dpdcA-00082k-C3; Wed, 06 Sep 2017 12:55:47 -0400 In-reply-to: (message from Alan Third on Wed, 6 Sep 2017 09:53:54 +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: 208.118.235.43 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:136641 Archived-At: > From: Alan Third > Date: Wed, 6 Sep 2017 09:53:54 +0100 > Cc: 28342@debbugs.gnu.org, "Charles A. Roelli" , > James Nguyen > > I can replicate on ms windows using just: > > (setq scroll-margin 5) > (setq scroll-preserve-screen-position 1) > (setq mouse-wheel-scroll-amount '(1)) > > Open a large file. Make sure you're at the start of the file > > M-< > > Scroll down with the mouse wheel and within a few clicks point jumps to the middle of the screen. A few more > and it jumps to the end of the file. Even simpler: after evaluating the first 2 of the above 3 settings, visit xdisp.c, then type this twice: C-u 1 C-v After you type this the second time, Emacs will infloop. This bug is already present in Emacs 25.1. I will look into this when I have time. Thanks for the recipe.