No stack trace, but it was probably being reported as heap corruption like one
of:
https://errors.ubuntu.com/problem/3eeb40f2bfda80a6bfa3b538516c3a251ce01b51
https://errors.ubuntu.com/problem/e76be24690c9737be2215cd5a2d274b0ce15b88d
** Package changed: gnome-shell (Ubuntu) => mutter (Ubuntu)
** Changed in: mutter (Ubuntu)
Status: New => Fix Committed
** Tags added: fixed-in-mutter-49.1 fixed-upstream
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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to mutter in Ubuntu.
https://bugs.launchpad.net/bugs/2127077
Title:
GNOME shell crashes when enabling user-defined custom XKB types on
Ubuntu 25.10 beta
Status in mutter package in Ubuntu:
Fix Committed
Bug description:
The gnome-shell crashes when the "Use user-defined custom XKB types"
option is enabled using gnome-tweaks, without the possibility to login
again.
You can find the flag under Keyboards > Additional Options >
Miscellaneous options.
To restore the system in a working state, run: "gsettings reset
org.gnome.desktop.input-sources xkb-options"
The problem should be fixed in the main branch:
https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/4677
------
ProblemType: Bug
DistroRelease: Ubuntu 25.10
Package: gnome-shell 49.0-1ubuntu1
ProcVersionSignature: Ubuntu 6.17.0-5.5-generic 6.17.0-rc7
Uname: Linux 6.17.0-5-generic x86_64
NonfreeKernelModules: zfs
ApportVersion: 2.33.1-0ubuntu3
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Wed Oct 8 12:25:25 2025
DisplayManager: gdm3
InstallationDate: Installed on 2025-10-03 (5 days ago)
InstallationMedia: Ubuntu 25.10 "Questing Quokka" - Beta amd64 (20250917.2)
ProcEnviron:
LANG=it_IT.UTF-8
PATH=(custom, no user)
SHELL=/usr/bin/fish
TERM=alacritty
XDG_RUNTIME_DIR=<set>
RelatedPackageVersions: mutter-common 49.0-2ubuntu5
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)
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