Comment 29 for bug 188342

In Ubuntu 14.04 Trusty the same problem remains with the french (alternate) = français (variante) keyboard layout.
(This layout is for me the best of all french layouts, and it is the one selected by default when installing Ubuntu.)

But now, "thanks" to the gnome simplying of interfaces we now no longer have access to the optionnal settings of the keyboard layout !

To have access to these settings, install gnome-tweak-tool, you will find them under the "typing" section.
However gnome-tweak-tool doesn't work too good in 14.04 (background is transparent !)