From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#10304: 24.0.92: display bug Date: Sat, 27 Dec 2014 16:20:35 +0200 Message-ID: <83k31dkwcs.fsf@gnu.org> References: <8762hihrj7.fsf@live.com> <8362gnhp9b.fsf@gnu.org> <8338yfamvk.fsf@gnu.org> <83wqvr8rci.fsf@gnu.org> <83ehhw8c15.fsf@gnu.org> <831tp5ixns.fsf@gnu.org> <838uiuau85.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1419690083 20547 80.91.229.3 (27 Dec 2014 14:21:23 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 27 Dec 2014 14:21:23 +0000 (UTC) Cc: 10304@debbugs.gnu.org To: Lars Magne Ingebrigtsen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sat Dec 27 15:21:16 2014 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 1Y4sEz-0004gs-TX for geb-bug-gnu-emacs@m.gmane.org; Sat, 27 Dec 2014 15:21:14 +0100 Original-Received: from localhost ([::1]:56096 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Y4sEz-0004Gj-2L for geb-bug-gnu-emacs@m.gmane.org; Sat, 27 Dec 2014 09:21:13 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:59617) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Y4sEt-0004GY-Ry for bug-gnu-emacs@gnu.org; Sat, 27 Dec 2014 09:21:11 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Y4sEo-0005MA-ST for bug-gnu-emacs@gnu.org; Sat, 27 Dec 2014 09:21:07 -0500 Original-Received: from debbugs.gnu.org ([140.186.70.43]:49287) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Y4sEo-0005M4-PZ for bug-gnu-emacs@gnu.org; Sat, 27 Dec 2014 09:21:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1Y4sEo-0005Sl-8L for bug-gnu-emacs@gnu.org; Sat, 27 Dec 2014 09:21:02 -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, 27 Dec 2014 14:21:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 10304 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 10304-submit@debbugs.gnu.org id=B10304.141969005220969 (code B ref 10304); Sat, 27 Dec 2014 14:21:02 +0000 Original-Received: (at 10304) by debbugs.gnu.org; 27 Dec 2014 14:20:52 +0000 Original-Received: from localhost ([127.0.0.1]:58653 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1Y4sEa-0005S2-8g for submit@debbugs.gnu.org; Sat, 27 Dec 2014 09:20:52 -0500 Original-Received: from mtaout20.012.net.il ([80.179.55.166]:52780) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1Y4sEU-0005Rq-Ay for 10304@debbugs.gnu.org; Sat, 27 Dec 2014 09:20:46 -0500 Original-Received: from conversion-daemon.a-mtaout20.012.net.il by a-mtaout20.012.net.il (HyperSendmail v2007.08) id <0NH800E00VFA0L00@a-mtaout20.012.net.il> for 10304@debbugs.gnu.org; Sat, 27 Dec 2014 16:20:40 +0200 (IST) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout20.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0NH800DC0VUGX440@a-mtaout20.012.net.il>; Sat, 27 Dec 2014 16:20:40 +0200 (IST) In-reply-to: X-012-Sender: halo1@inter.net.il X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 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:97764 Archived-At: > From: Lars Magne Ingebrigtsen > Cc: 10304@debbugs.gnu.org > Date: Tue, 02 Dec 2014 18:01:08 +0100 > > I've produced four screenshots instead, which should make it clearer > what it's supposed to look like, and what's the bug. > > First, I've selected the article, and it's displaying the topmost part > of the article, and everything is fine. Thanks, and sorry again for a _really_ long delay. Based on the stuff you collected and the screenshots, it sounds like Emacs doesn't clear and doesn't redraw the parts of the screen which become corrupted, amazing as that sounds. The only difference between the "good" and the "bad" output is that in the latter case, for some reason, Emacs stops clearing and redrawing screen lines below some Y coordinate, and all the stuff which was there before that stays put instead of being replaced by the new stuff. I'd like to prepare an additional patch which will allow you to collect more data that might reveal why Emacs behaves like that. In order to test the patch, is it possible for you to give me instructions for how to display that article, starting from "emacs -Q"? Thanks in advance. I think we are making progress, albeit slowly (my fault, not yours).