From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.bugs Subject: bug#16840: 24.3.50; Jerky motion and up/down asymmetry scrolling images in Eww Date: Fri, 25 Dec 2015 08:43:37 +0100 Message-ID: <87r3ib3rdi.fsf@gnus.org> References: <874n3rj4ng.fsf@moondust.localdomain> <83eh2v4kx6.fsf@gnu.org> <87y513rrue.fsf_-_@moondust.localdomain> <83fvnb2fbf.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1451029461 4031 80.91.229.3 (25 Dec 2015 07:44:21 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 25 Dec 2015 07:44:21 +0000 (UTC) Cc: "N. Jackson" , 16840@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Dec 25 08:44:10 2015 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 1aCN2n-0007Q2-7k for geb-bug-gnu-emacs@m.gmane.org; Fri, 25 Dec 2015 08:44:09 +0100 Original-Received: from localhost ([::1]:34623 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aCN2m-0001nu-Fk for geb-bug-gnu-emacs@m.gmane.org; Fri, 25 Dec 2015 02:44:08 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:37664) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aCN2i-0001nc-M9 for bug-gnu-emacs@gnu.org; Fri, 25 Dec 2015 02:44:05 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aCN2g-00073y-Jm for bug-gnu-emacs@gnu.org; Fri, 25 Dec 2015 02:44:04 -0500 Original-Received: from debbugs.gnu.org ([208.118.235.43]:54904) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aCN2g-00073t-GC for bug-gnu-emacs@gnu.org; Fri, 25 Dec 2015 02:44:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84) (envelope-from ) id 1aCN2g-0001AK-BY for bug-gnu-emacs@gnu.org; Fri, 25 Dec 2015 02:44:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Lars Ingebrigtsen Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 25 Dec 2015 07:44:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 16840 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 16840-submit@debbugs.gnu.org id=B16840.14510294414466 (code B ref 16840); Fri, 25 Dec 2015 07:44:02 +0000 Original-Received: (at 16840) by debbugs.gnu.org; 25 Dec 2015 07:44:01 +0000 Original-Received: from localhost ([127.0.0.1]:34273 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84) (envelope-from ) id 1aCN2e-00019x-PB for submit@debbugs.gnu.org; Fri, 25 Dec 2015 02:44:00 -0500 Original-Received: from hermes.netfonds.no ([80.91.224.195]:35772) by debbugs.gnu.org with esmtp (Exim 4.84) (envelope-from ) id 1aCN2e-00019p-0M for 16840@debbugs.gnu.org; Fri, 25 Dec 2015 02:44:00 -0500 Original-Received: from 2.150.58.24.tmi.telenormobil.no ([2.150.58.24] helo=mouse) by hermes.netfonds.no with esmtpsa (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.72) (envelope-from ) id 1aCN2I-0003fk-VH; Fri, 25 Dec 2015 08:43:39 +0100 In-Reply-To: <83fvnb2fbf.fsf@gnu.org> (Eli Zaretskii's message of "Sat, 22 Feb 2014 20:05:40 +0200") User-Agent: Gnus/5.130014 (Ma Gnus v0.14) Emacs/25.1.50 (gnu/linux) X-MailScanner-ID: 1aCN2I-0003fk-VH MailScanner-NULL-Check: 1451634219.1775@XFsQ//dW1yxGtlKgKBWkNw 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:110377 Archived-At: Eli Zaretskii writes: >> >> Furthermore, while scrolling one key press at a time like this, there >> >> are occasional "glitches" where the image jumps back to the position it >> >> was in immediately before scrolling started. >> > >> > I don't see it with images I tried. It would be best if you could >> > provide a reproducible recipe, with a specific image, starting from >> > "emacs -Q", that shows these glitches. >> >> If it is reproducible on demand, I don't see the pattern. That's what I >> meant by the "occasional" in my description. > > I think I found the way of reproducing this, and I will look into > that. Did you get any further with this, by any chance? Cursor movement and scrolling is still somewhat unpredictable. With visual line mode, my expectation is that hitting the down key will take me to the next visible line, and that doesn't always happen, especially with large-ish images. But it's much better now than when this bug report was created a couple years ago... -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no