@wxl Walter - thanks for the research and explanations- changing status to "invalid" as this is by design if I understood correctly - then this not a bug.
** Changed in: sddm (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to sddm in Ubuntu. https://bugs.launchpad.net/bugs/2091958 Title: After install and rebooting the login screen shows a virtual keyboard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sddm/+bug/2091958/+subscriptions -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs