I'd like to use Ctrl + Alt + F4 shortcut (in Eclipse), but it's caught by Ubuntu and I cannot find, how to disable it.


  • This is a duplicate of this question. – cprn Apr 25 '12 at 20:19
up vote 2 down vote accepted
  1. Go to System settings... -> Keyboard Layout -> Options...,
  2. unwind Miscellaneous compatibility options,
  3. check Special keys (Ctrl+Alt+<key>) handled in a server.

Please, be aware it will also disable some other shortcuts (e.g. ctrl+alt++ and ctrl+alt+- used to switch video modes).

  • Thanks for your help. In fact I was looking for Ctrl + Alt + F4 but I wrote Ctrl + Shift + F4 :( – Cedric Thiebault Apr 26 '12 at 12:49

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