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I have a "power button" on my keyboard that enables standby or hibernate. I can't find the mapping of this key anywhere in "sytem settings>Keyboard", "system>power management", "compiz config> or similar (where I could find it before unity). How can I disable (not remap) this button?

I do not want to disable hibernate/sleep altogether, it's simply this key that gets pressed a lot by accident and it's getting quite annoying.

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Try a chisel and a pair of pliers. – Mike Scott Mar 23 '12 at 10:14
I was asking about this on the forum and annoyingly still have no answer. The GUI setting disappeared with the move to GTK3. – edm Mar 23 '12 at 12:05
Remove the key from keyboard with a pencil. (Don't do that, just a joke until final answer arrises...=) But I made it in some strange work situations... Just put the key back in when you done! Don't break keyboards! – H_7 Mar 23 '12 at 12:10
up vote 33 down vote accepted

Disable the suspend button in your system

gsettings set org.gnome.settings-daemon.plugins.power button-suspend "nothing"

Revert to the default value

gsettings set org.gnome.settings-daemon.plugins.power button-suspend "suspend"

Disable the sleep button in your system

gsettings set org.gnome.settings-daemon.plugins.power button-sleep "nothing"

Revert to the default value

gsettings set org.gnome.settings-daemon.plugins.power button-sleep "hibernate"

Disable the hibernate button in your system

gsettings set org.gnome.settings-daemon.plugins.power button-hibernate "nothing"

Revert to the default value

gsettings set org.gnome.settings-daemon.plugins.power button-hibernate "hibernate"

Settings those options above does not disable the functions in your system, you can still use the cog wheel menu to hibernate / suspend, this only disables keyboard and other buttons you might have in your computer.

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I filed a bug against ubuntu gnome-control-center keyboard shortcuts GUI. It should manage these buttons like other keyboard buttons:… – Stephen Ostermiller Nov 15 '12 at 14:02
+1 Works like a charm, thanks! – Lukas Stejskal Feb 2 '13 at 11:46

Dconf Editor is the recommend replacment to gconf editor for Unity. You can get dconf in the software center or by typing sudo apt-get install dconf-tools in the terminal.

With Dconf editor, navigate to org gnome settings-daemon plugins power. There you can change what the sleep button does, as well as many other buttons on your keyboard.

enter image description here

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+1, essentially the GUI version of the accepted answer :), thanks – KillianDS Mar 24 '12 at 19:03

Have you also tried this one?

gsettings set org.gnome.settings-daemon.plugins.power button-suspend "nothing"

I did all 3 from the linked-to question and it fixed this for me (x86 on 12.04).

EDIT: Here's a single command that does all 3:

for x in button-{suspend,sleep,hibernate}; do 
  gsettings set org.gnome.settings-daemon.plugins.power $x "nothing";
share|improve this answer
Thank You very much - it has solved my problem of unwanted suspends (the key is on my keyboard direct next to calculator key) ===> I use now gsettings set org.gnome.settings-daemon.plugins.power button-suspend "interactive" – kapetr Mar 12 '13 at 8:48
... but if I remember correct: I had try in previous set button-suspend too (just forget it list in Q) but id does not help too. But now (maybe some update?) does :-) and thanks your reply i have try it again and IT WORKS! End good all good :-) – kapetr Mar 12 '13 at 9:33
ooh, "interactive" sounds potentially useful -- though I think I'll stick with "nothing" for now. I looked up this question because I was sitting on the floor with my tvputer and my 14-month-old daughter seemed to enjoy pushing the silver Moon button on the corner of my keyboard. And all the other buttons, which made retyping my password a bit of a challenge. – Ed Brannin Mar 13 '13 at 18:24

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