Confirmed! The workaround/fix is: sudo apt remove libcanberra-gtk3-module
Also I can't find an active bug tracker for libcanberra and its last release was in 2012. ** Package changed: gtk+3.0 (Ubuntu) => ubuntu ** Package changed: ubuntu => libcanberra (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1949200 Title: gnome-shell crashed with SIGTRAP from error "Can't create a GtkStyleContext without a display connection" in gtk_style_context_init To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1949200/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs