Comment 162 for bug 518056

@anacaona: Even if this issue has been handled with Portugese users in mind at first hand, the description in comment #157 is applicable to any language. In your case I suppose that editing the ~/.profile file is the way to go.

However, comment #157 refers to how it will work in Ubuntu 16.04. In 15.10, in addition to the proposed line in ~/.profile, you'll need to also open Language Support and change the input method system to "none".