We are using a Debian 7 machine with the default GNOME 3 installation to display content on an information display. This display needs to remain on until the connected computer is switched off. However, GNOME 3 switches the display off after a few minutes.

I can't seem to find a way to control this behaviour in either the system settings tools nor using dconf-editor. There is a prominent Google hit suggesting to change the

org.gnome.settings-daemon.plugins.power sleep-display-ac
org.gnome.settings-daemon.plugins.power sleep-display-battery
org.gnome.desktop.session idle-delay

keys, but this did not change anything.

So, how does one control and disable screen blanking in GNOME 3?


Try disabling DPMS and Screen saver:

xset -dpms
xset s off
  • 1
    Use xset +dpms; xset s on to restore the original state. – user44370 Jun 22 '14 at 12:29

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