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

Answer 1

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>'