I am using gnome 3 and gnome-shell (not gnome classic) on Ubuntu 12.04 LTS with emacs. I would like to use the keyboard shortcut Ctrl+Alt+D with emacs, however whenever I hit that keystroke, gnome intercepts it and hides all windows.
I have tried to disable it under Settings > Keyboard > Shortcuts > Navigation > Hide all normal windows. It appears disabled there, but if I hit Ctrl+Alt+D all windows will still minimize.
My next step was to try and use
dconf-editor to disable it under
org.gnome.desktop.wm.keybindings, but I couldn't find any option for "hide all windows" (or anything similar) there.
Any help would be appreciated, thanks.