You can make the computer screen dim after the computer has been idle (not used) for some period of time.
Create the user profile which contains the following lines:
local is the name of a dconf database.
Create the directory /etc/dconf/db/local.d/ if it does not already exist.
Create the key file /etc/dconf/db/local.d/00-power to provide information for the local database.
# Specify the dconf path [org/gnome/settings-daemon/plugins/power] # Enable screen dimming idle-dim=true # Set brightness after dimming idle-brightness=30
Create the key file /etc/dconf/db/local.d/00-session to provide information for the local database.
# Specify the dconf path [org/gnome/desktop/session] # The number of seconds of inactivity before the session is considered idle idle-delay=uint32 300
You must include the uint32 along with the integer key values as shown.
To prevent the user from overriding these settings, create the file /etc/dconf/db/local.d/locks/power-saving with the following content:
# Lock screen dimming and idle timeout /org/gnome/settings-daemon/plugins/power/idle-dim /org/gnome/settings-daemon/plugins/power/idle-brightness /org/gnome/desktop/session/idle-delay
If you want to let the user change these settings, skip this step.
Update the system databases:
# dconf update
Users must log out and back in again before the system-wide settings take effect.
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