[vim/vim] vim-gtk3 Ubuntu 25.10 freezes when alt-tab from insert mode (Issue #18772)
nanotek163
nanotek163 created an issue (vim/vim#18772)Steps to reproduce
New build of Ubuntu 25.10 desktop
sudo apt update
sudo apt upgrade
sudo apt install vim-gtk3
gvim
-> insert mode
-> alt + tab
Go back to gvim window, and insert is frozen. Have to forcefully kill gvim from 'top'.
Dropdowns at top will show dropdowns when clicked, but is largely useless as nothing that modifies the text will work. Things that create new guis (Edit -> Select font) will open the gui, but does not update with interaction. Scrolling doesn't show anything visible or single clicking, but if you scroll and then double click then go back to fonts it will be a font that is either higher up or lower. You can also click the 'cancel' to close and 'select' to close, but no visual indicators like it changing colors. So it seems the gui is being updated 'under the hood', but not visually for the child GUIs. The insert mode aspect does not see this same behavior as it seems completely frozen
'vim' seems to be working fine without this issue of freezing when alt-tabbing
Expected behaviour
Expected to not freeze
Version of Vim
gvim vim-gtk3, ubuntu VIM - Vi IMproved 9.1 (2024 Jan 02, compiled Sep 15 2025 16:38:04) Included patches: 1-948, 950-967
Environment
Ubuntu 25.10
vim-gtk3
$TERM: xterm-256color
$SHELL: /bin/bash - GNU bash, version 5.2.37(1)-release (x86_64-pc-linux-gnu)
Logs and stack traces
gvim --version VIM - Vi IMproved 9.1 (2024 Jan 02, compiled Sep 15 2025 16:38:04) Included patches: 1-948, 950-967 Modified by team...@tracker.debian.org Compiled by team...@tracker.debian.org Huge version with GTK3 GUI. Features included (+) or not (-): +acl +file_in_path +mouse_urxvt -tag_any_white +arabic +find_in_path +mouse_xterm +tcl +autocmd +float +multi_byte +termguicolors +autochdir +folding +multi_lang +terminal -autoservername -footer -mzscheme +terminfo +balloon_eval +fork() +netbeans_intg +termresponse +balloon_eval_term +gettext +num64 +textobjects +browse -hangul_input +packages +textprop ++builtin_terms +iconv +path_extra +timers +byte_offset +insert_expand +perl +title +channel +ipv6 +persistent_undo +toolbar +cindent +job +popupwin +user_commands +clientserver +jumplist +postscript +vartabs +clipboard +keymap +printer +vertsplit +cmdline_compl +lambda +profile +vim9script +cmdline_hist +langmap -python +viminfo +cmdline_info +libcall +python3 +virtualedit +comments +linebreak +quickfix +visual +conceal +lispindent +reltime +visualextra +cryptv +listcmds +rightleft +vreplace +cscope +localmap +ruby +wildignore +cursorbind +lua +scrollbind +wildmenu +cursorshape +menu +signs +windows +dialog_con_gui +mksession +smartindent +writebackup +diff +modify_fname +sodium +X11 +digraphs +mouse +sound +xattr +dnd +mouseshape +spell -xfontset -ebcdic +mouse_dec +startuptime +xim +emacs_tags +mouse_gpm +statusline -xpm +eval -mouse_jsbterm -sun_workshop +xsmp_interact +ex_extra +mouse_netterm +syntax +xterm_clipboard +extra_search +mouse_sgr +tag_binary -xterm_save -farsi -mouse_sysmouse -tag_old_static system vimrc file: "/etc/vim/vimrc" user vimrc file: "$HOME/.vimrc" 2nd user vimrc file: "~/.vim/vimrc" 3rd user vimrc file: "~/.config/vim/vimrc" user exrc file: "$HOME/.exrc" system gvimrc file: "/etc/vim/gvimrc" user gvimrc file: "$HOME/.gvimrc" 2nd user gvimrc file: "~/.vim/gvimrc" 3rd user gvimrc file: "~/.config/vim/gvimrc" defaults file: "$VIMRUNTIME/defaults.vim" system menu file: "$VIMRUNTIME/menu.vim" fall-back for $VIM: "/usr/share/vim" Compilation: gcc -c -I. -Iproto -DHAVE_CONFIG_H -DFEAT_GUI_GTK -I/usr/include/gtk-3.0 -I/usr/include/pango-1.0 -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/sysprof-6 -I/usr/include/harfbuzz -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/libmount -I/usr/include/blkid -I/usr/include/fribidi -I/usr/include/cairo -I/usr/include/pixman-1 -I/usr/include/gdk-pixbuf-2.0 -I/usr/include/x86_64-linux-gnu -I/usr/include/webp -I/usr/include/gio-unix-2.0 -I/usr/include/atk-1.0 -I/usr/include/at-spi2-atk/2.0 -I/usr/include/at-spi-2.0 -I/usr/include/dbus-1.0 -I/usr/lib/x86_64-linux-gnu/dbus-1.0/include -pthread -Wdate-time -g -O2 -Werror=implicit-function-declaration -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -ffile-prefix-map=/build/vim-QI64Ng/vim-9.1.0967=. -flto=auto -ffat-lto-objects -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -fdebug-prefix-map=/build/vim-QI64Ng/vim-9.1.0967=/usr/src/vim-2:9.1.0967-1ubuntu6 -DSYS_VIMRC_FILE=\"/etc/vim/vimrc\" -DSYS_GVIMRC_FILE=\"/etc/vim/gvimrc\" -D_REENTRANT -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1 Linking: gcc -Wl,-E -Wl,-Bsymbolic-functions -flto=auto -ffat-lto-objects -Wl,-z,relro -Wl,-z,now -Wl,--as-needed -o vim -lgtk-3 -lgdk-3 -lz -lpangocairo-1.0 -lpango-1.0 -lharfbuzz -latk-1.0 -lcairo-gobject -lcairo -lgdk_pixbuf-2.0 -lgio-2.0 -lgobject-2.0 -lglib-2.0 -lSM -lICE -lXt -lX11 -lXdmcp -lSM -lICE -lm -ltinfo -lselinux -lcanberra -lsodium -lacl -lattr -lgpm -L/usr/lib -llua5.1 -Wl,-E -fstack-protector-strong -L/usr/local/lib -L/usr/lib/x86_64-linux-gnu/perl/5.40/CORE -lperl -ldl -lm -lpthread -lcrypt -L/usr/lib/python3.13/config-3.13-x86_64-linux-gnu -lpython3.13 -ldl -lm -L/usr/lib/x86_64-linux-gnu -ltcl8.6 -ldl -lz -lpthread -lm -lruby-3.3 -lm -lpthread -L/usr/lib
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nanotek163
nanotek163 left a comment (vim/vim#18772)This may have been resolved with
sudo apt install xorg
I then needed to close all instances of gvim and vim that were running.
However, while debugging I tried installing a number of other things as suggested by the vim INSTALL doc before I got to a resolution.
sudo apt install clang sudo apt install libtool-bin sudo apt install libxt-dev sudo apt install libgtk-3-dev sudo apt install libpython3-dev sudo apt install gcc sudo apt install gpp sudo apt install ncurses-dev
From my minimal research it seems this is triggered by ubuntu dropping xorg (/x11?) in favor of wayland
I'm not that familiar with xorg/x11 or vim development, but if having xorg as a dependency for vim-gtk3 is a valid option I might recommend that.
It looks like gvim has merged something that natively supports wayland without xwayland back in Jan 30 v9.1.0064 so my version should in theory have that, but still seeing issue.
Not sure what the vim communities preference would be for how to handle this
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Christian Brabandt
chrisbra left a comment (vim/vim#18772)Can you please very using latest master + using vim --clean -g?
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Andy Footner
lazysoundsystem left a comment (vim/vim#18772)I tried adding all the packages in #18772 (comment) and using vim --clean -g with the latest version in the repos, but vim windows are freezing after a few minutes, seemingly independent of any interactions.
I updated to ubuntu 25.10 yesterday.
I'll try uninstalling the version from the repos and building the latest from source.
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dezza
dezza left a comment (vim/vim#18772)I had some issues when resizing x11-gvim on kde-plasma (wayland) - it resized in a loop, like it wasn't aware of dimensions.
It might be fixed by 9.2.0334, haven't tried since.
It seems thats this is different from DE to DE, friends I asked to try could not reproduce on true xorg-server, so might even be xwayland bug combined with certain DE.
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