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#53275: 29.0.50; Cursor shows up at the middle of the screen after window start is forced when vscroll is set Date: Sat, 15 Jan 2022 15:59:54 +0200 Message-ID: <83zgnxyu91.fsf@gnu.org> References: <87fsppejo8.fsf.ref@yahoo.com> <87fsppejo8.fsf@yahoo.com> <83a6fx1lvr.fsf@gnu.org> <87a6fxcu5p.fsf@yahoo.com> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="1527"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 53275@debbugs.gnu.org To: Po Lu Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Jan 15 15:04:01 2022 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 1n8jey-00008f-It for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 15 Jan 2022 15:04:00 +0100 Original-Received: from localhost ([::1]:47108 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1n8jex-00042q-5h for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 15 Jan 2022 09:03:59 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:39486) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n8jd5-0003Qr-KB for bug-gnu-emacs@gnu.org; Sat, 15 Jan 2022 09:02:06 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:46652) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1n8jd4-0006Sc-Dj for bug-gnu-emacs@gnu.org; Sat, 15 Jan 2022 09:02:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1n8jd4-0002Bg-Aj for bug-gnu-emacs@gnu.org; Sat, 15 Jan 2022 09:02:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 15 Jan 2022 14:02:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 53275 X-GNU-PR-Package: emacs Original-Received: via spool by 53275-submit@debbugs.gnu.org id=B53275.16422552638326 (code B ref 53275); Sat, 15 Jan 2022 14:02:02 +0000 Original-Received: (at 53275) by debbugs.gnu.org; 15 Jan 2022 14:01:03 +0000 Original-Received: from localhost ([127.0.0.1]:39555 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1n8jc6-0002AD-Hh for submit@debbugs.gnu.org; Sat, 15 Jan 2022 09:01:02 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:38600) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1n8jc2-00029Z-N8 for 53275@debbugs.gnu.org; Sat, 15 Jan 2022 09:01:01 -0500 Original-Received: from [2001:470:142:3::e] (port=58460 helo=fencepost.gnu.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n8jbv-0006BS-Rg; Sat, 15 Jan 2022 09:00:53 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=IDVVjm8CLgho/dbBKBTtP+sPIwXP+teM4vqpOkDFij0=; b=XupdQQvp+lw5 TZASA0JHk16fhjLlEl3sFRi+8ctxioLsb5NTo+WZs+Dx10lI7CDx2fH83Tz6qlul2xLkiptq2fVRr +iQ4vKvrg9NnWCQcQpD1YJMHqW0stKkR+dM55n6DD7Etm4ZmR3YYfJoAN1yB8pF/UZdJwH22sIqEm 71vu9OyQCRC53O2PeYxbmiYwBJ4iON6Dn99nmGvsaK2rNRCPAfbhrVzGtYxb+Jrg3S3uTUAmc3ioC e+SiA2LCl7YpAHdUSTUl1ooc/KzqUfKJKWqq+MttQoh6Tpb3PQeH6ZWRQp0byDACij7mBkFDdrDiB IezI77cyUyzQax9Ao55Q/A==; Original-Received: from [87.69.77.57] (port=1352 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n8jbK-0006hD-BE; Sat, 15 Jan 2022 09:00:33 -0500 In-Reply-To: <87a6fxcu5p.fsf@yahoo.com> (message from Po Lu on Sat, 15 Jan 2022 15:52:50 +0800) 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:224310 Archived-At: > From: Po Lu > Cc: 53275@debbugs.gnu.org > Date: Sat, 15 Jan 2022 15:52:50 +0800 > > Eli Zaretskii writes: > > >> (progn > >> (set-window-vscroll nil 30 t) > >> (redisplay) > >> (set-window-start nil (point-max))) > > > Sorry, I missed the "M-<" part. With it, the behavior is > > reproducible, but I'm not sure I understand what is "the correct > > position" of the cursor in this case > > It should show up where point is, which in this case is at the window > start. > > > or why does it matter what Emacs does in that case (except that it > > should not crash). > > Precision scrolling relies on this: when the buffer cannot be scrolled > downwards sufficiently, it sets the window start to point-max and > redisplays, which right now results in the cursor being displayed in the > middle of the screen until the next redisplay. Should be fixed now on the master branch.