I'm guessing this is related to bug 1777708, even if you only have one keyboard. It sounds related.
** Package changed: xorg (Ubuntu) => mutter (Ubuntu) ** Tags added: i18n -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1931018 Title: Keyboard layout switch freezes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1931018/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs