I do not know what fixed the bug, but the bug is not in shadow. Given the description, it seems related to kde. I don't really know which of the kde packages manage the logins or if the bug is on the kde session management, so I reassign to kdebase.
** Package changed: shadow (Ubuntu) => kdebase (Ubuntu) -- Input-Window for username and password disappears https://bugs.launchpad.net/bugs/446072 You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to kdebase in ubuntu. -- kubuntu-bugs mailing list kubuntu-b...@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs