When I set custom shortcuts from Keyboard / Shortcuts / Custom Shortcuts, all of the ones set to use Super key (e.g. Super + 1, set to open a text file using the default text editor) have a weird threshold between key presses. If Super is released too quickly, the shortcut is not registered. In practice, it requires, what I would call, an abnormally long press.

If I set up exactly same keys via Commands plugin in Compiz, the unresponsiveness is gone. What causes this behaviour? Can the the "threshold" be changed from somewhere? Does this happen on purpose - to give priority to the default Super key shortcuts in Unity?

Additional information:

  • Ubuntu 12.10
  • Seems to affect only Super key (at least I have not noticed the same on other keys)
  • Super key is not assigned to show the launcher (I've changed it to Super + A, but it seems to make no difference whether Super is used)
  • The command or key combination does not matter, except possibly if additionally Ctrl, Shift or Alt are used (e.g. Ctrl+Super+1), but I am not 100% sure about this, because it is hard to test this consistently as the difference is only in milliseconds

I do not want use Compiz / Commands, because the plugin only allows 20 commands (why is there such restriction in the first place?!) and setting up them in there is much more troublesome.


I just tested it and it seems like Super will have preference always, so just add Alt to your Custom Shortcuts and you should be sorted.

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  • I wouldn't want to do that, as pressing Super+Alt+<n> is considerably harder and I'm already using Ctrl and Alt for additional shortcuts. (If you meant using only Alt, that's a non-starter as many applications use Alt+<n> by default...). – pileofrocks Feb 23 '13 at 21:57
  • Actually, I don't kwow where your Alt key is, but from what I know it's right next to Super (mind you, I've only used 3 different languages generic keyboards so far). Usually I can do Alt+Super with folded thumb technique, or folded thumb+crooked pimkie ;) That's why I propose this solution. – catalesia Feb 23 '13 at 22:22
  • It is right next to Super, but I just find it harder (small fingers I guess), especially when using letter or number keys further away. (No idea what "crooked pimkie" means :P) – pileofrocks Feb 24 '13 at 3:23

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