Binary package hint: console-setup
During package configuration, my keyboard (Japanese Logicool Internet Navigator Keyboard SE) is accurately detected as having a Latin and non-Latin mode. There is a dedicated key on the keyboard designed for switching between modes, labelled something similar to the following:
カタカナ
ひらがな
=====
ローマ字
and usually called "Hiragana/Katakana", but this key may not be used for mode switch, instead a menu is provided with many key combinations that might be used for other purposes. When using SCIM for input under X, this key switches modes as expected (pressing alone switches between character sets in the most recently typed section, and Alt+HIragana/Katakana switches between the three available layouts). In the console, this key is ignored.
The same question also appears to be repeated both prior to installation and immediately after installation of the package (I always select "No Toggle", as the console doesn't really support JP.UTF8 as far I have yet discovered). The current encounter with this issue is with console-setup 1.13ubuntu6.