You can make the computer screen dim after the computer has been idle (not used) for some period of time.
Create the key file
# Specify the dconf path
[org/gnome/settings-daemon/plugins/power]
# Enable screen dimming
idle-dim=true
# Set brightness after dimming
idle-brightness=uint32 30
You must include the uint32
along with the
integer key values as shown.
Create the key file
# 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
# 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.