How can I find which command is bound to a give keyboard shortcut? I remember playing with my keyboard shortcuts recently in different places: System/Preferences/Keyboard Shortcuts, "gnome-keyboard-properties" and Compiz. Is there a central place where all those shortcuts are kept or do I have to remember all the places where I set a keyboard shortcut?
Ubuntu – How to find which command is bound to a given keyboard shortcut
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Related Solutions
Between 12.10 and 17.04 the Ubuntu desktop is actually Compiz and Unity itself is just a Compiz plugin.
If you, instead, set and enable the Compiz "commands" plugin and set keyboard shortcuts using CCSS where there is a conflict, CCSM should alert you to what plugin is causing the conflict and should also provide options to disable the conflicting plugin or conflicting keybinding before applying your settings.
Personally, I've also experienced difficulty setting keyboard shortcuts in 14.04+ but ever since I decided to start using the CCSM plugin instead of the keyboard shortcut settings in Unity, I have not experienced any issues whatsoever and all my shortcuts work just fine and so strongly suggest you at least check it out as an option.
You can workaround it with dconf-editor.
Go to org.gnome.settings-daemon.plugins.media-keys and edit manually your keyboard shortcut.
Best Answer
No, there's no central place. Any application can grab certain keys and use them as shortcuts, and it's up to that application to choose a configuration method. GNOME applications typically use gconf. Compiz and Metacity even share the gconf keys -- those are the shortcuts you can see in gnome-keybinding-properties.