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Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.4.0 Content-Language: en-GB To: bug-gnu-emacs@gnu.org From: Mickey Petersen Subject: 29.0.50; Mouse wheel scroll twitches up sometimes when I scroll down Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CWLGBR01FT036:EE_|LO0P265MB6598:EE_ MIME-Version: 1.0 X-MS-Office365-Filtering-Correlation-Id: e0dfc6ed-c508-4fe6-c218-08dabcee3152 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:178.79.136.144; 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envelope-from=mickey@fyeah.org; helo=GBR01-CWL-obe.outbound.protection.outlook.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: -1.3 (-) X-Debbugs-Envelope-To: submit X-Mailman-Approved-At: Thu, 03 Nov 2022 02:47:05 -0400 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -2.3 (--) Note: I'm using the tree-sitter branch, but the issue also appears in the master branch. Emacs 28.x works fine. When I scroll down with my mouse wheel -- typically after an existing window has changed buffers, such as after selecting (via keyboard or mouse) an Info manual node -- the scroll action sometimes (but not always) jerks upwards several lines. I can then keep scrolling and it'll start scrolling down again. This may sometimes happen after scrolling for a little while, and sometimes not at all. It's hard to reproduce; but the issue affects a baseline Emacs build (-Q or -q) and only sometimes. I had a look in the bug tracker for `scroll' and found nothing. I also checked `M-x customize-changed' to look for likely culprits. I found nothing that may cause this behaviour, beyond pixel scrolling, which seems like a smoking gun to me, but it's off by default in emacs -Q. 1. Is it possible there are changes the scrolling code that is active even when that mode is not? 2. Could there be some sort of variable that determines scroll direction that, somehow, gets confused? Thanks. Mickey. In GNU Emacs 29.0.50 (build 2, x86_64-pc-linux-gnu, GTK+ Version  3.24.20, cairo version 1.16.0) of 2022-10-28 built on mickey-work Repository revision: 629f222ba2abf5a149c381e27c89e88963f7466d Repository branch: feature/tree-sitter Windowing system distributor 'The X.Org Foundation', version 11.0.12013000 System Description: Ubuntu 20.04.3 LTS Configured using:  'configure --with-mailutils --with-imagemagick --with-json  --with-xwidgets --with-native-compilation --without-compress-install  --with-tree-sitter' Configured features: ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ IMAGEMAGICK JPEG JSON LCMS2 LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES NATIVE_COMP NOTIFY INOTIFY PDUMPER PNG RSVG SECCOMP SOUND SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS TREE-SITTER X11 XDBE XIM XINPUT2 XPM XWIDGETS GTK3 ZLIB Important settings:   value of $LC_MONETARY: en_GB.UTF-8   value of $LC_NUMERIC: en_GB.UTF-8   value of $LC_TIME: en_GB.UTF-8   value of $LANG: en_GB.UTF-8   value of $XMODIFIERS: @im=ibus   locale-coding-system: utf-8-unix Major mode: Info Minor modes in effect:   tooltip-mode: t   global-eldoc-mode: t   show-paren-mode: t   electric-indent-mode: t   mouse-wheel-mode: t   tool-bar-mode: t   menu-bar-mode: t   file-name-shadow-mode: t   isearch-fold-quotes-mode: t   global-font-lock-mode: t   font-lock-mode: t   blink-cursor-mode: t   buffer-read-only: t   line-number-mode: t   indent-tabs-mode: t   transient-mark-mode: t   auto-composition-mode: t   auto-encryption-mode: t   auto-compression-mode: t Load-path shadows: None found. Features: (shadow sort mail-extr emacsbug message mailcap yank-media puny dired dired-loaddefs rfc822 mml mml-sec password-cache epa derived epg rfc6068 epg-config gnus-util text-property-search mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils mule-util info edmacro kmacro tutorial time-date cl-loaddefs comp comp-cstr warnings icons subr-x rx cl-seq cl-macs gv cl-extra help-mode bytecomp byte-compile cconv cl-lib rmc iso-transl tooltip eldoc paren electric uniquify ediff-hook vc-hooks lisp-float-type elisp-mode mwheel term/x-win x-win term/common-win x-dnd tool-bar dnd fontset image regexp-opt fringe tabulated-list replace newcomment text-mode lisp-mode prog-mode register page tab-bar menu-bar rfn-eshadow isearch easymenu timer select scroll-bar mouse jit-lock font-lock syntax font-core term/tty-colors frame minibuffer nadvice seq simple cl-generic indonesian philippine cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese composite emoji-zwj charscript charprop case-table epa-hook jka-cmpr-hook help abbrev obarray oclosure cl-preloaded button loaddefs faces cus-face macroexp files window text-properties overlay sha1 md5 base64 format env code-pages mule custom widget keymap hashtable-print-readable backquote threads xwidget-internal dbusbind inotify lcms2 dynamic-setting system-font-setting font-render-setting cairo move-toolbar gtk x-toolkit xinput2 x multi-tty make-network-process native-compile emacs) Memory information: ((conses 16 106055 14079)  (symbols 48 7684 0)  (strings 32 24382 2092)  (string-bytes 1 692381)  (vectors 16 16014)  (vector-slots 8 280598 15332)  (floats 8 92 262)  (intervals 56 4484 0)  (buffers 1008 13)) From debbugs-submit-bounces@debbugs.gnu.org Thu Nov 03 04:32:18 2022 Received: (at 58980) by debbugs.gnu.org; 3 Nov 2022 08:32:18 +0000 Received: from localhost ([127.0.0.1]:47785 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oqVe6-0007l4-Gr for submit@debbugs.gnu.org; Thu, 03 Nov 2022 04:32:18 -0400 Received: from eggs.gnu.org ([209.51.188.92]:60552) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oqVe4-0007kq-AL for 58980@debbugs.gnu.org; Thu, 03 Nov 2022 04:32:16 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oqVdy-0001dP-TM; Thu, 03 Nov 2022 04:32:10 -0400 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=EdRjshF0DjVf1O/CSdsZKDuPzZVNqdh8xMe2T7IG2fA=; b=AjqYEBntV/GC cKXgfDdHFZxaZV6PV6AmLdsE16EV7itKWy6DM1fr3cZfiG6Ifmtaz5KmFNpbD9G2zROI5uxas4Nji LOzA+vP6Bpsxv1DHLnH1nVrtvModIF1cs7CxyrJqL3KvXOUOQRlZmJTwAP+kfzfEi7Wwz2dvfAzAi f2Giamn6De0wHVw8vNbLsybnJ/xJK1qKo5EaUDLpzoJx1qH68q41z5VOfnSuK0X13AunHGc5YVGl3 +XaK8ByLs3IZkdTbQZh6EFkJ+swx8ZL6rH/OoE7ffDbkidWJDrPFlqe/H8m2TfE+Y0D1uQanlHAAM DXew5xcREWkpVFnl8DavWA==; Received: from [87.69.77.57] (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 1oqVdp-0002sm-Eu; Thu, 03 Nov 2022 04:32:10 -0400 Date: Thu, 03 Nov 2022 10:31:52 +0200 Message-Id: <83fsf08mmf.fsf@gnu.org> From: Eli Zaretskii To: Mickey Petersen , Po Lu In-Reply-To: (message from Mickey Petersen on Wed, 2 Nov 2022 16:20:40 +0000) Subject: Re: bug#58980: 29.0.50; Mouse wheel scroll twitches up sometimes when I scroll down References: X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 58980 Cc: 58980@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -3.3 (---) > Date: Wed, 2 Nov 2022 16:20:40 +0000 > From: Mickey Petersen > > When I scroll down with my mouse wheel -- typically after an existing > window has changed > buffers, such as after selecting (via keyboard or mouse) an Info manual > node -- > the scroll action sometimes (but not always) jerks upwards several > lines. I can then keep scrolling and it'll start scrolling down > again. This may sometimes happen after scrolling for a little while, and > sometimes not at all. > > It's hard to reproduce; but the issue affects a baseline Emacs build (-Q or > -q) and only sometimes. Please provide some kind of reproduction recipe, even if it doesn't happen every time. When it does happen, type "C-h l", and post the commands Emacs recorded that you were invoking immediately before the problem. Otherwise, it's very hard to do anything about the problem, unless someone here can reproduce it (I couldn't). > I had a look in the bug tracker for `scroll' and found nothing. I also > checked `M-x customize-changed' to look for likely culprits. I found > nothing that may cause this behaviour, beyond pixel scrolling, which > seems like a smoking gun to me, > but it's off by default in emacs -Q. > > 1. Is it possible there are changes the scrolling code that is active even > when that mode is not? > > 2. Could there be some sort of variable that determines scroll direction > that, somehow, gets confused? Hard to answer these questions, but maybe Po Lu with have clues. 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Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.4.0 Subject: Re: bug#58980: 29.0.50; Mouse wheel scroll twitches up sometimes when I scroll down Content-Language: en-GB To: Eli Zaretskii , Po Lu References: <83fsf08mmf.fsf@gnu.org> From: Mickey Petersen In-Reply-To: <83fsf08mmf.fsf@gnu.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CWLGBR01FT022:EE_|LO4P265MB6009:EE_ MIME-Version: 1.0 X-MS-Office365-Filtering-Correlation-Id: d3214927-0562-41ac-7fbe-08dabd805539 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:178.79.136.144; CTRY:GB; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:semantical.co.uk; PTR:semantical.co.uk; CAT:NONE; SFS:(13230022)(346002)(39830400003)(136003)(376002)(396003)(451199015)(46966006)(36840700001)(478600001)(82310400005)(31686004)(7636003)(7596003)(356005)(110136005)(83380400001)(5660300002)(36756003)(86362001)(42186006)(6666004)(31696002)(316002)(6266002)(26005)(36860700001)(41300700001)(8936002)(2906002)(40480700001)(4326008)(8676002)(336012)(186003)(53546011)(70586007)(70206006)(47076005)(2616005)(38230200001)(79816003)(14776008)(43740500002); DIR:OUT; SFP:1102; X-OriginatorOrg: fyeah.org X-MS-Exchange-CrossTenant-OriginalArrivalTime: 03 Nov 2022 09:46:50.9137 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: d3214927-0562-41ac-7fbe-08dabd805539 X-MS-Exchange-CrossTenant-Id: a4e27e3d-bab0-45e8-8942-e64cf9fbd34f X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=a4e27e3d-bab0-45e8-8942-e64cf9fbd34f; Ip=[178.79.136.144]; Helo=[semantical.co.uk] X-MS-Exchange-CrossTenant-AuthSource: CWLGBR01FT022.eop-gbr01.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: LO4P265MB6009 X-Spam-Score: -0.8 (/) X-Debbugs-Envelope-To: 58980 Cc: 58980@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -2.8 (--) On 03/11/2022 8:31 am, Eli Zaretskii wrote: >> Date: Wed, 2 Nov 2022 16:20:40 +0000 >> From: Mickey Petersen >> >> When I scroll down with my mouse wheel -- typically after an existing >> window has changed >> buffers, such as after selecting (via keyboard or mouse) an Info manual >> node -- >> the scroll action sometimes (but not always) jerks upwards several >> lines. I can then keep scrolling and it'll start scrolling down >> again. This may sometimes happen after scrolling for a little while, and >> sometimes not at all. >> >> It's hard to reproduce; but the issue affects a baseline Emacs build (-Q or >> -q) and only sometimes. > Please provide some kind of reproduction recipe, even if it doesn't > happen every time. When it does happen, type "C-h l", and post the > commands Emacs recorded that you were invoking immediately before the > problem. Otherwise, it's very hard to do anything about the problem, > unless someone here can reproduce it (I couldn't). Sure. I was attempting to reproduce the issue -- by mouse-1 clicking in the already-open lossage buffer -- and then I began scrolling _down_ though the lossage buffer and it triggered the issue. It instead made me scroll up when I was in actual fact scrolling down. The succession of wheel-up events eventually turned into wheel-down; despite the fact that I only scrolled down on my mouse wheel. Lossage:  C-h l               ;; view-lossage        ;; mouse-drag-region <- I enter the lossage buffer             ;; mouse-set-point        ;; mouse-drag-region             ;; mouse-set-point            ;; mwheel-scroll <- I begin scrolling down on my physical mouse wheel            ;; mwheel-scroll            ;; mwheel-scroll            ;; mwheel-scroll            ;; mwheel-scroll          ;; mwheel-scroll <- It corrects itself and actually starts scrolling down.          ;; mwheel-scroll          ;; mwheel-scroll          ;; mwheel-scroll   ;; mwheel-scroll   ;; mwheel-scroll          ;; mwheel-scroll  C-h l               ;; view-lossage <- I refresh the lossage. I _do_, however, have a way that seems to reproduce the issue: when I scroll an inactive window and then go back to scrolling the active window the bug manifests itself more easily: 1. Ensure there are two windows minimum. 2. Select one. 3. Scroll the other down by hovering over it with your mouse. 4. Now attempt to scroll the active window. Mine will scroll up, and trigger "beginning of buffer" user errors if it's already at the top. Seems there's some stateful behaviour that does or does not get carried over when the 'hovered window scroll' changes? >> I had a look in the bug tracker for `scroll' and found nothing. I also >> checked `M-x customize-changed' to look for likely culprits. I found >> nothing that may cause this behaviour, beyond pixel scrolling, which >> seems like a smoking gun to me, >> but it's off by default in emacs -Q. >> >> 1. Is it possible there are changes the scrolling code that is active even >> when that mode is not? >> >> 2. Could there be some sort of variable that determines scroll direction >> that, somehow, gets confused? > Hard to answer these questions, but maybe Po Lu with have clues. From debbugs-submit-bounces@debbugs.gnu.org Thu Nov 03 06:05:22 2022 Received: (at 58980) by debbugs.gnu.org; 3 Nov 2022 10:05:22 +0000 Received: from localhost ([127.0.0.1]:48083 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oqX69-00026S-FP for submit@debbugs.gnu.org; Thu, 03 Nov 2022 06:05:22 -0400 Received: from eggs.gnu.org ([209.51.188.92]:53430) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oqX5y-00025H-0q for 58980@debbugs.gnu.org; Thu, 03 Nov 2022 06:05:20 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oqX5s-0000F9-2z; Thu, 03 Nov 2022 06:05:04 -0400 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=J+imo034W2eGRcF9T/F9j0rvekKonf0KdfMXAV+Z7oE=; b=XyQllolD+J3w Qm/qjkF/2Mk1njUp65LSQ6byxCpOmdh47r3A06yDCEkbEyjzEmKsDHV9tt6YF4Rv+CKuKeDUvRrch kRZcdOsY76swLTHJRQpLTexRyzHFr/ol/F7IllX5m5GIllIJStdtBE04XWkKmWTiaesAXaYNXIygf qWjdu3SkSlYyhsBZKIdWLMhMS4OelKWlt+3R0RfB9uW1kqXcsvB7rwC/MOa8nrwhZ+pvtsbRrcHEV 1cNWEAXBQghSZVn+UWKSaIuFD1mWhD4F+HgxGDiPyAMxNPW8PE4LiS7mxtACdC0w/RYbSgS6JL+G0 rDu/Xbx3aBVxCTajn9ufzw==; Received: from [87.69.77.57] (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 1oqX5p-0003Qo-AO; Thu, 03 Nov 2022 06:05:02 -0400 Date: Thu, 03 Nov 2022 12:04:52 +0200 Message-Id: <831qqk8ibf.fsf@gnu.org> From: Eli Zaretskii To: Mickey Petersen In-Reply-To: <4fe2bb6a-393a-7d5b-d90f-fd01e875a96a@fyeah.org> (message from Mickey Petersen on Thu, 3 Nov 2022 09:46:46 +0000) Subject: Re: bug#58980: 29.0.50; Mouse wheel scroll twitches up sometimes when I scroll down References: <83fsf08mmf.fsf@gnu.org> <4fe2bb6a-393a-7d5b-d90f-fd01e875a96a@fyeah.org> X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 58980 Cc: luangruo@yahoo.com, 58980@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -3.3 (---) > Date: Thu, 3 Nov 2022 09:46:46 +0000 > Cc: 58980@debbugs.gnu.org > From: Mickey Petersen > > 1. Ensure there are two windows minimum. > 2. Select one. > 3. Scroll the other down by hovering over it with your mouse. > 4. Now attempt to scroll the active window. Mine will scroll up, and > trigger "beginning of buffer" user errors if it's already at the top. Still not reproducible here, sorry. But I'm not on X, so maybe this is specific to X Windows. 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Hermes SMTP Server) with ESMTPA ID 33cdbbab65ba111f85448840735c8529; Thu, 03 Nov 2022 11:05:22 +0000 (UTC) From: Po Lu To: Eli Zaretskii Subject: Re: bug#58980: 29.0.50; Mouse wheel scroll twitches up sometimes when I scroll down In-Reply-To: <83fsf08mmf.fsf@gnu.org> (Eli Zaretskii's message of "Thu, 03 Nov 2022 10:31:52 +0200") References: <83fsf08mmf.fsf@gnu.org> Date: Thu, 03 Nov 2022 19:05:13 +0800 Message-ID: <87v8nwe1sm.fsf@yahoo.com> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Mailer: WebService/1.1.20783 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo Content-Length: 344 X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 58980 Cc: Mickey Petersen , 58980@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) Eli Zaretskii writes: > Hard to answer these questions, but maybe Po Lu with have clues. I think I can guess what this is: some problem with scroll valuator tracking. Mickye, does it still happen with a fresh build from master? I removed the valuator reset optimizations that were hitting X server bugs one or two weeks ago. 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Hermes SMTP Server) with ESMTPA ID a08ac92872cb616c429f73864a1e541d; Thu, 03 Nov 2022 11:08:11 +0000 (UTC) From: Po Lu To: Mickey Petersen Subject: Re: bug#58980: 29.0.50; Mouse wheel scroll twitches up sometimes when I scroll down In-Reply-To: <4fe2bb6a-393a-7d5b-d90f-fd01e875a96a@fyeah.org> (Mickey Petersen's message of "Thu, 3 Nov 2022 09:46:46 +0000") References: <83fsf08mmf.fsf@gnu.org> <4fe2bb6a-393a-7d5b-d90f-fd01e875a96a@fyeah.org> Date: Thu, 03 Nov 2022 19:07:23 +0800 Message-ID: <87r0yke1p0.fsf@yahoo.com> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Mailer: WebService/1.1.20783 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo Content-Length: 779 X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 58980 Cc: Eli Zaretskii , 58980@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) Mickey Petersen writes: > I _do_, however, have a way that seems to reproduce the issue: when I > scroll an inactive window and then go back to scrolling the active > window the bug manifests itself more easily: > > 1. Ensure there are two windows minimum. Windows, or frames? > Seems there's some stateful behaviour that does or does not get > carried over when the 'hovered window scroll' changes? No, that shouldn't be it. Emacs tracks scroll valuators on a display-local basis, but only gets motion events for the valuator when the mouse pointer is inside a frame. As a result, scroll valuators are reset upon crossing events, as by the time an XI_Enter event arrives, the stored value can no longer be trusted. So please answer the question above. 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Hermes SMTP Server) with ESMTPA ID 6b875e809af5b91b884c0a9d301ea811; Fri, 04 Nov 2022 11:22:52 +0000 (UTC) From: Po Lu To: Mickey Petersen Subject: Re: bug#58980: 29.0.50; Mouse wheel scroll twitches up sometimes when I scroll down In-Reply-To: <6980406f-2807-1b7b-86e9-6a0e1b4cc470@fyeah.org> (Mickey Petersen's message of "Fri, 4 Nov 2022 10:36:40 +0000") References: <83fsf08mmf.fsf@gnu.org> <4fe2bb6a-393a-7d5b-d90f-fd01e875a96a@fyeah.org> <87r0yke1p0.fsf@yahoo.com> <0eece511-bacd-2d16-107b-9b9251cc8236@fyeah.org> <87eduke019.fsf@yahoo.com> <87y1ssckpe.fsf@yahoo.com> <561adb8a-2f09-9bbd-1c9a-d99098613ed9@fyeah.org> <87tu3gci00.fsf@yahoo.com> <138ccba0-9bc5-ad23-c103-fd118caf73ff@fyeah.org> <87pme3d0mh.fsf@yahoo.com> <6980406f-2807-1b7b-86e9-6a0e1b4cc470@fyeah.org> Date: Fri, 04 Nov 2022 19:22:41 +0800 Message-ID: <87zgd7arr2.fsf@yahoo.com> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Mailer: WebService/1.1.20783 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo Content-Length: 770 X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 58980 Cc: 58980@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) Mickey Petersen writes: > That did indeed seem to fix the issue, but unfortunately it did seem > to introduce one minor regression: > > When you first scroll a window, it now takes two scrolls of my wheel > to induce one scroll event in Emacs. After that, it works fine, and > subsequent 'chains' of up or down scrolls work as expected. > It's again 'reset' if I try to scroll a different, non-active, window; > then I must scroll twice in a direction to get Emacs to register a > scroll event. > > Could there be an off-by-one error somewhere? Luckily, what I said earlier isn't it. Please test again and see if the problem is fixed now. Thanks; BTW, please keep the bug tracker copied in by using "Reply to All" (or its equivalent in your MUA.) 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Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.4.0 Subject: Re: bug#58980: 29.0.50; Mouse wheel scroll twitches up sometimes when I scroll down Content-Language: en-GB To: Po Lu References: <83fsf08mmf.fsf@gnu.org> <4fe2bb6a-393a-7d5b-d90f-fd01e875a96a@fyeah.org> <87r0yke1p0.fsf@yahoo.com> <0eece511-bacd-2d16-107b-9b9251cc8236@fyeah.org> <87eduke019.fsf@yahoo.com> <87y1ssckpe.fsf@yahoo.com> <561adb8a-2f09-9bbd-1c9a-d99098613ed9@fyeah.org> <87tu3gci00.fsf@yahoo.com> <138ccba0-9bc5-ad23-c103-fd118caf73ff@fyeah.org> <87pme3d0mh.fsf@yahoo.com> <6980406f-2807-1b7b-86e9-6a0e1b4cc470@fyeah.org> <87zgd7arr2.fsf@yahoo.com> From: Mickey Petersen In-Reply-To: <87zgd7arr2.fsf@yahoo.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CWLGBR01FT034:EE_|CWLP265MB2081:EE_ MIME-Version: 1.0 X-MS-Office365-Filtering-Correlation-Id: 09ce4168-82a9-49ba-9704-08dabe57a4ca X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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PTR:semantical.co.uk; CAT:NONE; SFS:(13230022)(396003)(346002)(136003)(376002)(39830400003)(451199015)(36840700001)(46966006)(31686004)(40480700001)(36756003)(336012)(6266002)(5660300002)(83380400001)(31696002)(356005)(2906002)(7636003)(7596003)(8676002)(186003)(26005)(42186006)(47076005)(41300700001)(478600001)(2616005)(36860700001)(53546011)(6862004)(86362001)(8936002)(70206006)(4326008)(6666004)(82310400005)(70586007)(316002)(38230200001)(43740500002)(14776008)(79816003); DIR:OUT; SFP:1102; X-OriginatorOrg: fyeah.org X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 Nov 2022 11:28:06.2050 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 09ce4168-82a9-49ba-9704-08dabe57a4ca X-MS-Exchange-CrossTenant-Id: a4e27e3d-bab0-45e8-8942-e64cf9fbd34f X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=a4e27e3d-bab0-45e8-8942-e64cf9fbd34f; Ip=[178.79.136.144]; Helo=[semantical.co.uk] X-MS-Exchange-CrossTenant-AuthSource: CWLGBR01FT034.eop-gbr01.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CWLP265MB2081 X-Spam-Score: -1.8 (-) X-Debbugs-Envelope-To: 58980 Cc: 58980@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -2.8 (--) On 04/11/2022 11:22 am, Po Lu wrote: > Mickey Petersen writes: > >> That did indeed seem to fix the issue, but unfortunately it did seem >> to introduce one minor regression: >> >> When you first scroll a window, it now takes two scrolls of my wheel >> to induce one scroll event in Emacs. After that, it works fine, and >> subsequent 'chains' of up or down scrolls work as expected. >> It's again 'reset' if I try to scroll a different, non-active, window; >> then I must scroll twice in a direction to get Emacs to register a >> scroll event. >> >> Could there be an off-by-one error somewhere? > Luckily, what I said earlier isn't it. Please test again and see if the > problem is fixed now. I can confirm that this fix now resolves both the regression and the original issue. I'll keep you posted if I discover any other oddities. (Pixel scroll precision mode also works fine, by the way!) Thanks, Po lu. > > Thanks; BTW, please keep the bug tracker copied in by using "Reply to > All" (or its equivalent in your MUA.) Oops - thanks! 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Hermes SMTP Server) with ESMTPA ID c30d30a3edc15c8ea5c3331a5e221a76; Fri, 04 Nov 2022 11:30:23 +0000 (UTC) From: Po Lu To: Mickey Petersen Subject: Re: bug#58980: 29.0.50; Mouse wheel scroll twitches up sometimes when I scroll down In-Reply-To: (Mickey Petersen's message of "Fri, 4 Nov 2022 11:28:02 +0000") References: <83fsf08mmf.fsf@gnu.org> <4fe2bb6a-393a-7d5b-d90f-fd01e875a96a@fyeah.org> <87r0yke1p0.fsf@yahoo.com> <0eece511-bacd-2d16-107b-9b9251cc8236@fyeah.org> <87eduke019.fsf@yahoo.com> <87y1ssckpe.fsf@yahoo.com> <561adb8a-2f09-9bbd-1c9a-d99098613ed9@fyeah.org> <87tu3gci00.fsf@yahoo.com> <138ccba0-9bc5-ad23-c103-fd118caf73ff@fyeah.org> <87pme3d0mh.fsf@yahoo.com> <6980406f-2807-1b7b-86e9-6a0e1b4cc470@fyeah.org> <87zgd7arr2.fsf@yahoo.com> Date: Fri, 04 Nov 2022 19:30:15 +0800 Message-ID: <87o7tnareg.fsf@yahoo.com> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Mailer: WebService/1.1.20783 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo Content-Length: 629 X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 58980-done Cc: 58980-done@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) Mickey Petersen writes: > I can confirm that this fix now resolves both the regression and the > original issue. > > I'll keep you posted if I discover any other oddities. (Pixel scroll > precision mode also works fine, by the way!) Thanks for testing. Please be sure to report any future issues here, as we want Emacs 29 to be released with wheel movement working everywhere, including on odd hardware setups that I cannot test myself (my guess is that you use a trackpad to move the pointer but a mouse wheel to scroll, or have some integrated keyboard-trackpad device.) With that, I'm closing this bug. 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Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.4.0 Subject: Re: bug#58980: 29.0.50; Mouse wheel scroll twitches up sometimes when I scroll down Content-Language: en-GB To: Po Lu References: <83fsf08mmf.fsf@gnu.org> <4fe2bb6a-393a-7d5b-d90f-fd01e875a96a@fyeah.org> <87r0yke1p0.fsf@yahoo.com> <0eece511-bacd-2d16-107b-9b9251cc8236@fyeah.org> <87eduke019.fsf@yahoo.com> <87y1ssckpe.fsf@yahoo.com> <561adb8a-2f09-9bbd-1c9a-d99098613ed9@fyeah.org> <87tu3gci00.fsf@yahoo.com> <138ccba0-9bc5-ad23-c103-fd118caf73ff@fyeah.org> <87pme3d0mh.fsf@yahoo.com> <6980406f-2807-1b7b-86e9-6a0e1b4cc470@fyeah.org> <87zgd7arr2.fsf@yahoo.com> <87o7tnareg.fsf@yahoo.com> From: Mickey Petersen In-Reply-To: <87o7tnareg.fsf@yahoo.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CWLGBR01FT011:EE_|CWLP265MB2306:EE_ MIME-Version: 1.0 X-MS-Office365-Filtering-Correlation-Id: 78ad50dc-fc64-47b8-5725-08dabe583133 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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SFV:NSPM; H:semantical.co.uk; PTR:semantical.co.uk; CAT:NONE; SFS:(13230022)(376002)(136003)(346002)(396003)(39830400003)(451199015)(36840700001)(46966006)(186003)(2616005)(336012)(83380400001)(26005)(36860700001)(53546011)(6666004)(6266002)(47076005)(2906002)(4744005)(40480700001)(5660300002)(70586007)(42186006)(478600001)(82310400005)(41300700001)(8936002)(8676002)(4326008)(6862004)(70206006)(316002)(36756003)(7636003)(86362001)(31696002)(7596003)(356005)(31686004)(38230200001)(14776008)(79816003)(43740500002); DIR:OUT; SFP:1102; X-OriginatorOrg: fyeah.org X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 Nov 2022 11:32:01.7839 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 78ad50dc-fc64-47b8-5725-08dabe583133 X-MS-Exchange-CrossTenant-Id: a4e27e3d-bab0-45e8-8942-e64cf9fbd34f X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=a4e27e3d-bab0-45e8-8942-e64cf9fbd34f; Ip=[178.79.136.144]; Helo=[semantical.co.uk] X-MS-Exchange-CrossTenant-AuthSource: CWLGBR01FT011.eop-gbr01.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CWLP265MB2306 X-Spam-Score: -0.8 (/) X-Debbugs-Envelope-To: 58980-done Cc: 58980-done@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.8 (-) On 04/11/2022 11:30 am, Po Lu wrote: > Mickey Petersen writes: > >> I can confirm that this fix now resolves both the regression and the >> original issue. >> >> I'll keep you posted if I discover any other oddities. (Pixel scroll >> precision mode also works fine, by the way!) > Thanks for testing. Please be sure to report any future issues here, as > we want Emacs 29 to be released with wheel movement working everywhere, > including on odd hardware setups that I cannot test myself (my guess is > that you use a trackpad to move the pointer but a mouse wheel to scroll, > or have some integrated keyboard-trackpad device.) Actually my setup is rather vanilla: desktop mouse with a 'clicky' scroll wheel -- as opposed to a smooth-scrolling one -- running Ubuntu in a VM. So the mouse hardware is definitely an emulated one as far as X/Linux is concerned. > > With that, I'm closing this bug. From unknown Sat Aug 16 22:47:12 2025 Received: (at fakecontrol) by fakecontrolmessage; To: internal_control@debbugs.gnu.org From: Debbugs Internal Request Subject: Internal Control Message-Id: bug archived. Date: Fri, 02 Dec 2022 12:24:15 +0000 User-Agent: Fakemail v42.6.9 # This is a fake control message. # # The action: # bug archived. thanks # This fakemail brought to you by your local debbugs # administrator