This turns out not to be a keymapper bug at all (whoops); the input it's being given by console-setup is incorrect.
** Changed in: console-setup (Ubuntu) Sourcepackagename: keymapper => console-setup -- us misdetected as jp https://launchpad.net/bugs/74375 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs