Chapter 7. Changing the power button behavior

Procedure

1. Edit the /etc/systemd/logind.conf configuration file and set the HandlePowerKey=poweroff variable to one of the following options:

   poweroff

   Shut down the computer.

   reboot

   Reboot the system.

   halt

   Initiate a system halt.

   kexec

   Initiate a kexec reboot.

   suspend

   Suspend the system.

   hibernate

   Initiate system hibernation.

   ignore

   Do nothing.

   For example, to reboot the system upon pressing the power button, use this setting:

   HandlePowerKey=reboot

2. Restart the systemd-logind service to apply the changes:

   # systemctl reload systemd-logind

Procedure

1. Create a local database for system-wide settings in the /etc/dconf/db/local.d/01-power file with the following content:

   [org/gnome/settings-daemon/plugins/power]
   power-button-action=<value>

   Replace <value> with one of the following power button actions:

   nothing

   Does nothing .

   suspend

   Suspends the system.

   hibernate

   Hibernates the system.

   interactive

   Shows a pop-up query asking the user what to do.

   With interactive mode, the system powers off automatically after 60 seconds when pressing the power button. However, you can choose a different behavior from the pop-up query.

2. Optional: Override the user’s setting, and prevent the user from changing it. Enter the following configuration in the /etc/dconf/db/local.d/locks/01-power file:

   /org/gnome/settings-daemon/plugins/power/power-button-action

3. Update the system databases:

   # dconf update

4. Log out and back in again for the system-wide settings to take effect.