Update, using Kubuntu Feisty Herd 2: If I boot the system, configuring German language and keyboard layout in the boot manager, then everything works correctly in this part of the installer.
If I "forget" to configure German language and keyboard layout in the boot manager, the problem still occurs in a slightly different way: Now instead of yielding two squares, umlauts aren't displayed at all - it's as if the umlaut keys (and apparently the same set of keys that had problems before) were no-ops. -- Umlauts displayed incorrectly during keyboard layout selection https://launchpad.net/bugs/78867 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
