how could I re-map the 'Super' (left) key to launch an app? I want to launch Synapse with it, which is far more responsive than the Unity launcher. Cheers.

  • You might want to look into xbindkeys (manpages.ubuntu.com/manpages/hardy/man1/xbindkeys.1.html) and xmodmap (manpages.ubuntu.com/manpages/hardy/man1/xmodmap.1.html).
    – Michael
    Jan 30, 2013 at 18:40
  • @MichaelBiech xbindkeys doesn't work for the super key, moreover, xbindkeys only adds behavior, I assume the OP also wants to unbind the Unity Launcher... Jan 30, 2013 at 19:48
  • @GerhardBurger: Using xbindkeys with "Super_L" works perfectly fine for me. I pointed out xmodmap for precisely that reason, though: It might not work out of the box, so something along the lines of xmodmap -e "remove mod4 = Super_L" might be in order to stop it from being recognized as a modifier. Your point about the OP wanting to unbind the Unity launcher from Super_L is very valid, though and I didn't take it into account. Also you're right about adding complexity typically not being a good thing.
    – Michael
    Jan 30, 2013 at 20:38
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    @MichaelBiech, that is strange, I tried adding it to .xbindkeyrc and that didn't work... Could you tell me how you got it working? Also the xmodmap -e "remove mod4 = Super_L" didn't seem to do anything. I'm very interested in solutions to this question, if you have some time could you have a look at my question about Ubuntu key bindings in general (unanswered)? Jan 30, 2013 at 21:02
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    possible duplicate of Can I change Synapse shortcut to Super/Windows key alone?
    – karel
    Sep 7, 2015 at 7:44

1 Answer 1


The 'Super' button can be set as an activation key in the configuration file for Synapse.

See Can I change Synapse shortcut to Super/Windows key alone?

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