Automatically Dimming the Backlight on Battery

Since upgrading my Thinkpad to the latest Xubuntu I have noticed that after 10 seconds of inactivity the display backlight automatically dimms down, which makes reading text for more than a couple of seconds pretty annoying. The question had already been asked on but the answer was gnome specific and I could not find the specified dialog on Xubuntu, nor could I find the options in gconf-editor.

Ruling Out the Causes

As changing the auto-dimming level and timeout in xfce4-power-manager-settings did not fix it, I consecutively killed the xfce4-power-manager process, xscreensaver and upowerd, all without any success

gnome-settings-manager it is

Finally I stumbled over this bug report where a gsettings command is given, that will change the timeout. A quick

gsettings set org.gnome.settings-daemon.plugins.power idle-dim-time <seconds>

will fix it.

gconf-editor - dconf-editor

After that, I also found a gui to edit the gsettings database called dconf-editor, which is found in the dconf-tools package. Inside, browse to org.gnome.settings-daemon.plugins.power and you will find more settings and even get to disable the power plugin alltogether.