From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: martin rudalics Newsgroups: gmane.emacs.bugs Subject: bug#22395: 25.0.50; 'C-v' scrolls only a half of the window height Date: Mon, 18 Jan 2016 11:30:50 +0100 Message-ID: <569CBEDA.6030003@gmx.at> References: NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1453113145 31991 80.91.229.3 (18 Jan 2016 10:32:25 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 18 Jan 2016 10:32:25 +0000 (UTC) To: Dani Moncayo , 22395@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Jan 18 11:32:14 2016 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1aL76c-000742-DQ for geb-bug-gnu-emacs@m.gmane.org; Mon, 18 Jan 2016 11:32:14 +0100 Original-Received: from localhost ([::1]:58700 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aL76b-0001WG-Q3 for geb-bug-gnu-emacs@m.gmane.org; Mon, 18 Jan 2016 05:32:13 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:59694) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aL76U-0001Va-I9 for bug-gnu-emacs@gnu.org; Mon, 18 Jan 2016 05:32:10 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aL76Q-00045H-Hp for bug-gnu-emacs@gnu.org; Mon, 18 Jan 2016 05:32:06 -0500 Original-Received: from debbugs.gnu.org ([208.118.235.43]:35871) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aL76Q-00045D-EG for bug-gnu-emacs@gnu.org; Mon, 18 Jan 2016 05:32:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84) (envelope-from ) id 1aL76Q-0000Yd-4e for bug-gnu-emacs@gnu.org; Mon, 18 Jan 2016 05:32:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: martin rudalics Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 18 Jan 2016 10:32:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 22395 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 22395-submit@debbugs.gnu.org id=B22395.14531130801913 (code B ref 22395); Mon, 18 Jan 2016 10:32:02 +0000 Original-Received: (at 22395) by debbugs.gnu.org; 18 Jan 2016 10:31:20 +0000 Original-Received: from localhost ([127.0.0.1]:52324 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84) (envelope-from ) id 1aL75k-0000Ul-IM for submit@debbugs.gnu.org; Mon, 18 Jan 2016 05:31:20 -0500 Original-Received: from mout.gmx.net ([212.227.17.20]:56114) by debbugs.gnu.org with esmtp (Exim 4.84) (envelope-from ) id 1aL75i-0000U7-J1 for 22395@debbugs.gnu.org; Mon, 18 Jan 2016 05:31:19 -0500 Original-Received: from [192.168.1.100] ([212.95.7.12]) by mail.gmx.com (mrgmx102) with ESMTPSA (Nemesis) id 0M0Kp7-1a0PNd10O5-00uble; Mon, 18 Jan 2016 11:31:12 +0100 In-Reply-To: X-Provags-ID: V03:K0:8slkoNrEOd1BM6MW8XzPXELl8CQLAKSqlDaNsWQzAENWICuxpyZ WtI8onBz25icAn6uEnQJnxdavu2L5hzpUgflKfAHSOXKC0G6V0T0zu9lYZt6wC4LuKQ8kwq 4eI+eTSxUXRXxV3fnf8PFT8wp+qx4Rd7mMN/Xn5pAAJvHB0axYsQCQZmIcySj66224adgib S1gmoOABYD/l/sJit794g== X-UI-Out-Filterresults: notjunk:1;V01:K0:UEDJJF7OwcM=:d1dxLdV6sybx53DecSxBTG jC2IK7EOf5WgKRUQo6ta4FviVx3gHmloSeuxe9ITGQ4XptNW5OCssck6e8k+UESmMMYiA1yN2 UDHVuMDkZMf4UoYIpuHo+gYzPhFqZ844cXb6cO28AjlEc4DxdlODdYXzpl3lR4EknrSBfF3as OEgJ8tTx3AVpEdquXRQcVNBc8p8YBzFK9LB20psuBvtoaARyXKtS0VeMPU0/B3F7uXSo+sgPs ZYr1GJq1dWcv5WxFC3UEG0oJKudDS3/63g6E7ef9E0NQxMh+PgaVBkQXITf/1KuahuHDbEIYb feobyYcf1U2wto/QA549uK39Te5WJtBWLL9KQWqppx2Hw6ZVbch1eSSm5ijm8HrOHms4tik7b +vcSbEc9UNU+GRA3F8OhKmi56C+zCzZqJIrS1bvvmheaCZdVXL8NFF/NwyX12xzwGzRWZmAEQ b9x2Flx9oTg39v1vHBPq3fbIokhmraqomVwOVuSts2uSrB1p5KKBbkgdin5t5XgRWDHix5OdT FsltAmy6F78ygFZTq1Xgl4ntGmTmVMr1cLJyH5x33EGENcj1K+ZUkUio4kqpsSDoGVuXkIggI uKBGecbYEQC0aOx2GExfSess8qmzERKFz0khcpXR7MX5AK3XCBsN5HyMES6nl6OucMwVReAR3 DVNgKF0ylZJb7vLI5vxPanYlqyRb+t52pybkTjmaC3M/NIUdntLXMepIPjXJSoXqpanE+FqGM fQRZwlTLIqgJxo//u2NwdXemFLSUE0nbkNjK9B7cfWjmuYhmCz9VcqHAussGrga0GYNSwJDh 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-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:111696 Archived-At: > Recipe from "emacs -Q": > > 1. Eval: > (setq scroll-preserve-screen-position t) > (setq scroll-margin 2) > > 2. Visit the attached file. > > On my system, I initially see lines 1 to 33. > > 3. Type 'C-v' > > I observe that 'C-v' has scrolled the buffer vertically, but only by > about a half of the window height (I now see lines 16 to 48). > Subsequent 'C-v' commands do the same: they scroll the buffer by a > half of the window. > > This seems wrong. The amount of scrolling should be "a near full > screen", as described in 'C-h k C-v'. > > I observe this bug also in the last 24.5 release. I'm not sure whether it's a bug or a feature. But here I can "fix" your behavior by customizing =E2=80=98scroll-conservatively=E2=80=99 to 101. martin