Package: emacs;
Reported by: Nick OBrien <nick4f42 <at> proton.me>
Date: Sun, 18 Feb 2024 18:31:02 UTC
Severity: normal
Found in version 30.0.50
Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):
From: Nick OBrien <nick4f42 <at> proton.me> To: "bug-gnu-emacs <at> gnu.org" <bug-gnu-emacs <at> gnu.org> Subject: 30.0.50; persistent key input delay after using vc commands in pgtk Date: Sat, 17 Feb 2024 20:38:06 +0000
After opening a file in a git repository with emacs -Q, using vc-annotate, and returning to the file, various key inputs like C-f, C-b, and typing characters have a noticeable delay between key down and screen update. I am using GNOME 45.3 and Wayland. Steps to reproduce (starting from an empty directory): $ git init $ seq 10 > foo $ git add -A && git commit -m 'c1' $ seq 10 >> foo $ git add -A && git commit -m 'c2' $ seq 10 >> foo $ git add -A && git commit -m 'c3' $ emacs -Q C-x C-f foo RET C-f C-b ; no noticeable delay C-x v g p p n n C-x k RET C-f C-b ; noticeable delay After following those steps, pressing and holding C-f does not visually update the cursor until 100s of milliseconds later (although occasionally it would update immediately). However, the cursor would also be updated as soon as C-f was released. Before running C-x v g, holding C-f would immediately update the cursor. Setting the following did not have a noticeable effect: (setq pgtk-wait-for-event-timeout 0) After starting a daemon with M-x server-start (from the same emacs as before) and opening a terminal client with emacsclient -nw, holding down C-f in the foo buffer immediately updated the cursor, just like in the graphical client before running C-x v g. Context: This delay has been happening to me for a while when using emacs 29 pgtk and magit. My emacs will start with no key input delay, and then after a while of editing and doing various magit commands, key inputs would suddenly have the delay described above after running a particular magit command. The delay would happen in every buffer. It would persist for the entire life of the emacs process, even after running desktop-clear, disabling most global minor modes, closing and re-opening the emacs client window, etc. Like described above, terminal clients would not have the input lag even when graphical clients did. I was able to more reliably reproduce this lag when using vc. Although my steps to reproduce this bug use vc-annotate, I experienced the bug when making commits with vc as well. Software information from GNOME settings: - **Firmware Version:** H.F0 - **OS Name:** NixOS 23.11 (Tapir) - **OS Build:** 23.11.20240211.809cca7 - **OS Type:** 64-bit - **GNOME Version:** 45.3 - **Windowing System:** Wayland - **Kernel Version:** Linux 6.1.77 In GNU Emacs 30.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.39, cairo version 1.18.0) Repository revision: 77576cd7626e4a99a5c88aa854091d701edd53a8 Repository branch: master System Description: NixOS 23.11 (Tapir) Configured using: 'configure --prefix=/nix/store/yv9dl9jplhk8pgjkkp1qrpp5mw99524r-emacs-pgtk-20240217.0 --disable-build-details --with-modules --with-pgtk --with-native-compilation --with-tree-sitter --with-xwidgets' Configured features: CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG JSON LIBSELINUX LIBSYSTEMD LIBXML2 MODULES NATIVE_COMP NOTIFY INOTIFY PDUMPER PGTK PNG RSVG SECCOMP SOUND SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS TREE_SITTER WEBP XIM XWIDGETS GTK3 ZLIB Important settings: value of $EMACSLOADPATH: value of $EMACSNATIVELOADPATH: value of $LC_MONETARY: en_US.UTF-8 value of $LC_NUMERIC: en_US.UTF-8 value of $LC_TIME: en_US.UTF-8 value of $LANG: en_US.UTF-8 value of $XMODIFIERS: @im=fcitx locale-coding-system: utf-8-unix Major mode: Fundamental 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 global-font-lock-mode: t font-lock-mode: t blink-cursor-mode: t minibuffer-regexp-mode: 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 iso8601 time-date subr-x help-mode vc-annotate vc vc-git diff-mode easy-mmode vc-dispatcher cl-loaddefs cl-lib rmc iso-transl tooltip cconv eldoc paren electric uniquify ediff-hook vc-hooks lisp-float-type elisp-mode mwheel term/pgtk-win pgtk-win term/common-win pgtk-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 theme-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 dynamic-setting system-font-setting font-render-setting cairo gtk pgtk multi-tty move-toolbar make-network-process native-compile emacs) Memory information: ((conses 16 60720 9114) (symbols 48 6128 0) (strings 32 17189 2899) (string-bytes 1 599226) (vectors 16 10446) (vector-slots 8 145248 6672) (floats 8 36 525) (intervals 56 268 14) (buffers 984 12))
GNU bug tracking system
Copyright (C) 1999 Darren O. Benham,
1997,2003 nCipher Corporation Ltd,
1994-97 Ian Jackson.