I recently started having an issue. I am unsure as to how long it has existed, but it must have occurred during the past week. Whenever I type Shift-c, Emacs does not interpret it as the character C, but rather the Control command. This acts only in the outline minor mode (regular outline mode is unaffected). I am unsure if this is a component of the mode, or a bug somewhere

  • 1
    Please try without your init file via emacs -Q. If the problem goes away, bisect your init file until you isolate the problem. If the problem persists, it's because of some setting at the OS level.
    – Dan
    Dec 5, 2015 at 14:08

1 Answer 1


I had the same problem with outline-minor-mode and the following line in my init.el was the culprit:

(setq outline-minor-mode-prefix "C-c C-o") 

Seems like that was interpreting the first "C" as Shift-C instead of Control.

  • 3
    That's probably because you need to wrap "C-c C-o" in a call to (kbd ...).
    – Dan
    Mar 11, 2016 at 0:39
  • I had similar problem. Solution was to add backslash to keybinding in eg. "\C-c \C-o".
    – slk500
    Jan 24, 2023 at 20:53

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