*** This bug is a duplicate of bug 1886059 *** https://bugs.launchpad.net/bugs/1886059
Thanks for the bug report. The log seems to confirm this is a duplicate of bug 1886059, however what we really need is a stack trace from a core/dump file. Please follow these instructions to get that: https://wiki.ubuntu.com/Bugs/Responses#Missing_a_crash_report_or_having_a_.crash_attachment ** This bug has been marked a duplicate of bug 1886059 gnome-shell crashed with assertion failure "!xcb_xlib_threads_sequence_lost" [xcb_io.c:260] -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1924753 Title: gnome-shell repeatedly crashing and core dumping Status in gnome-shell package in Ubuntu: New Bug description: This is a repeat of bug 1886059 with "MUTTER_SYNC=1" added to /etc/environment. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: gnome-shell 3.36.7-0ubuntu0.20.04.1 ProcVersionSignature: Ubuntu 5.4.0-72.80-generic 5.4.101 Uname: Linux 5.4.0-72-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.16 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Fri Apr 16 06:26:22 2021 DisplayManager: gdm3 InstallationDate: Installed on 2019-07-31 (625 days ago) InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416) RelatedPackageVersions: mutter-common 3.36.7+git20201123-0.20.04.1 SourcePackage: gnome-shell UpgradeStatus: Upgraded to focal on 2020-05-09 (341 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1924753/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp