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I want to disable the Super key, when I press Super nothing should happen.

How can I do that?

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The "Super" key (a.k.a. "Windows" key) acts like a meta key such as Ctrl and Alt. In Unity, it's supposed to open the Launcher. To open the applications menu, use Alt + F1. I've no idea how to disable it though. –  Lekensteyn Feb 19 '12 at 12:10
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3 Answers 3

up vote 27 down vote accepted

You can change that in Compiz.

  1. Install the compizconfig-settings-managerInstall compizconfig-settings-manager package.

  2. Hit Alt+F2, type about:config and hit Enter to open the Unity configuration.

  3. Change or disable the shortcut for Key to show the launcher as you like to free your Super key:

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The tab layout is different now (in 13.04), but you click around you can still find the Launcher setting, and it still works. This is a blessing for Emacs users. –  user100464 Aug 6 '13 at 14:32
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Execute the following command and then log in Unity desktop environment again.

dconf write /org/compiz/profiles/unity/plugins/unityshell/show-launcher '""'

In Ubuntu 12.04 and later:

gconftool-2 --set "/apps/compiz-1/plugins/unityshell/screen0/options/show_launcher" --type string ""
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This is great for those of us who don't want to have to install compiz-settings-manager! –  Programster Jul 5 '13 at 21:04
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Just putting the following lines into your ~/.Xmodmap and then log out and log in Unity again.

keycode 133 = NoSymbol
keycode 134 = NoSymbol
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