From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Steve Revilak Newsgroups: gmane.emacs.bugs Subject: bug#22715: 25.0.91; Point randomly jumps during key entry Date: Tue, 16 Feb 2016 20:39:49 -0500 Message-ID: <20160217013949.GE2649@srevilak.net> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="UnaWdueM1EBWVRzC" X-Trace: ger.gmane.org 1455673284 27129 80.91.229.3 (17 Feb 2016 01:41:24 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 17 Feb 2016 01:41:24 +0000 (UTC) To: 22715@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Feb 17 02:41:12 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 1aVr79-0001p3-Ke for geb-bug-gnu-emacs@m.gmane.org; Wed, 17 Feb 2016 02:41:11 +0100 Original-Received: from localhost ([::1]:52569 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aVr78-0001CS-BR for geb-bug-gnu-emacs@m.gmane.org; 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charset=us-ascii; format=flowed Content-Disposition: inline First, please accept my apologies for the poor bug report. I'm calling it a poor bug report because I've been unable to find a simple recipe that easily reproduces the behavior I'm seeing. The behavior itself is easy to describe: while providing keyboard input, sometimes point jumps to a (seemingly) random place in the buffer. Some examples - while holding the UP arrow to slowly scroll upwards in the current buffer, point suddenly `jumps' up, over several screenfuls of text - while typing (ordinary alphanumeric text), point jumps to a line near the top of the file. I've noticed this most often when using emacs to write java code. I'll be typing away in the body of a method, and point will jump to a position in the file header comment, several hundred lines earlier. This doesn't happen very often. Perhaps 3--4 times during a work day. I have not found a way to make it happen on demand. I've experienced this behavior in 25.0.90 and 25.0.91, but not in earlier versions. I typically see this behavior in java-mode and org-mode. That said, the vast majority of my emacs usage involves java-mode and org-mode. I've seen this behavior on two different x86_64 GNU/Linux systems. One system runs Redhat 6.4, and the other runs OpenSUSE 13.2. Both systems have `standard' USB keyboards, and optical mice. If I'm able to find a nice set of steps to reproduce, I'll add them to this bug report. If there are suggestions for gathering/providing more information, please let me know, and I'll gladly try them. In GNU Emacs 25.0.91.1 (x86_64-unknown-linux-gnu, GTK+ Version 3.14.15) of 2016-02-16 built on sunny Windowing system distributor 'The X.Org Foundation', version 11.0.11601000 System Description: openSUSE 13.2 (Harlequin) (x86_64) Configured using: 'configure --prefix=/usr/local/emacs-25.0.91' Configured features: XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND DBUS GCONF GSETTINGS NOTIFY ACL GNUTLS LIBXML2 FREETYPE XFT ZLIB TOOLKIT_SCROLL_BARS GTK3 X11 Important settings: value of $LC_COLLATE: C value of $LANG: en_US.UTF-8 value of $XMODIFIERS: @im=ibus locale-coding-system: utf-8-unix Major mode: Lisp Interaction Minor modes in effect: tooltip-mode: t global-eldoc-mode: t electric-indent-mode: t mouse-wheel-mode: t tool-bar-mode: t menu-bar-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t blink-cursor-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t line-number-mode: t transient-mark-mode: t Recent messages: For information about GNU Emacs and the GNU system, type C-h C-a. Load-path shadows: None found. 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