That's probably bug #1814949, opening another panel, e.G by using $ gnome-control-center display could workaround the issue
Could you also get a backtrace using gdb (https://wiki.ubuntu.com/Backtrace) ** Changed in: gnome-control-center (Ubuntu) Importance: Undecided => High ** Changed in: gnome-control-center (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1815723 Title: Segmentation fault (core dumped) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1815723/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
