C-M-d not working on Emacs GUI OSX using Mac Command key as Meta

Question

I'm using Emacs GUI on OSX and I've remapped Cmd key to meta by adding the following to a ~/.emacs.d/personal/misc.el file on prelude:

(setq mac-command-modifier 'meta)

Whereas C-M-u works as expected, C-M-d, when using Cmd as meta key, does nothing. If using alt key though, it works as expected.

What can I do to solve this? I've tried typing C-h l to see what's being typed but when I type C-M-d, nothing appears.

Any ideas?

Cheers

This sounds like it might be a system level OSX keyboard shortcut that is overriding an Emacs one. I had a similar issue on Ubuntu getting M-SPC to work in Emacs. If you know how to change/disable the OSX binding for Ctrl + Command + d, that might do the trick. — elethan, Commented Feb 23, 2016 at 19:50
@elethan, you are a legend!! Your clue lead to me to the answer, which is explained here :D — Galder Zamarreño, Commented Feb 24, 2016 at 7:51

Community · Accepted Answer · 2017-04-13 12:45:30Z

3

Elethan's tip lead me to the answer here, which essentially involves disabling system wide OSX Command-Control-D shortcut by calling:

defaults write com.apple.symbolichotkeys AppleSymbolicHotKeys -dict-add 70 '<dict><key>enabled</key><false/></dict>'

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answered Feb 24, 2016 at 7:52

Galder Zamarreño

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@elethan et al, I've sent a PR to mathiasbynens's .osx dotfiles so that it gets disabled there and many Emacs users can benefit. Vote it up! :)
– Galder Zamarreño
Commented Feb 24, 2016 at 8:15

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