Hot answers tagged keyboard-layout
Look into the "Keyboard" and delete all languages except the language you want. Save the changes. Th eproblem should be fixed
A per user configuration for the combination ' + c = ç can be achieved by adding: export GTK_IM_MODULE=cedilla to the user's .profile file.
This is covered in some depth at the Ubuntu Community Wiki, including various ways to do it permanently, systemwide.
I don't know about that file you mentioned, but as you will not need this special c very often I suppose, maybe using the screen keyboard would be enough? I think it's called onboard. You should reach it in the panel with that round symbol with a human inside. At least you could work with this until you find a real solution.
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