There are some problems with the French Keyboard:
Alt+Ctrl has the same effect than Alt-g for some key binding.
For examples, the ‘]’ and the ‘}’ can’t be write and it’s really annoying. -_-
To make them works, I need to edit the keymap file and add:
'atom-workspace atom-pane': 'ctrl-alt-=': 'unset!' 'atom-workspace atom-text-editor:not([mini])': 'ctrl-alt-[': 'unset!'
The last one is really strange…