Thanks again. That confirms the crash happens only in the live session on: gnome-shell --sm-disable --mode=ubiquity
but it also confirms the crash is unreportable because "Invalid core dump". Apparently the expected core file size is about 400MB but only 8MB is found. I wonder if you waited long enough after the crash the whole file might be written to /tmp/ ... -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1940532 Title: [impish live session] gnome-shell crashed with SIGSEGV in libX11.so.6.4.0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1940532/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs