I think this is the crash being reported in impish live sessions but the core files keep getting truncated so it's hard to tell. See also bug 1940532.
** Also affects: xorg-server (Ubuntu) Importance: Undecided Status: New -- 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/1942031 Title: gnome-shell crashed with SIGSEGV in _XSend() from XQueryExtension() from InitDisplayInfoEntry() from __glXLookupDisplay() from CommonMakeCurrent() Status in gnome-shell package in Ubuntu: Confirmed Status in libx11 package in Ubuntu: Confirmed Bug description: The Ubuntu Error Tracker has been receiving reports about a problem regarding gnome-shell. This problem was most recently seen with package version 40.2-1ubuntu1, the problem page at https://errors.ubuntu.com/problem/11d90a7db51d11df7d99a6ef6e5aa31eb678d273 contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports. If you do not have access to the Ubuntu Error Tracker and are a software developer, you can request it at http://forms.canonical.com/reports/. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1942031/+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