Neither using the Settings application nor the command:

gsettings set org.gnome.desktop.session idle-delay 120

Does have any affect on turning the monitor idle.

  • Are you using X and if so, is DPMS enabled according to xset -q?
    – Sebastian
    Nov 19, 2018 at 16:47

1 Answer 1


GUI : To change the keys you can use “dconf Editor “.

it worked fine for me.

edit : try flipping values of org/gnome/desktop/session idle-delay to 300 ( the values are in seconds, so 300 = 5 min

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  • What keys are you changing? Could you flesh out this answer a little bit to describe how it would solve the problem at hand?
    – Jeff Schaller
    Nov 18, 2018 at 13:43
  • values of org/gnome/desktop/session idle-delay, it does exactly what the command says. Nov 19, 2018 at 11:46
  • This is exactly what the OP reports as not working (we're talking about the same dconf key). Saying "it's working for me" doesn't help much... Nov 19, 2018 at 12:00

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