Possible Duplicate:
How can I disable backlight when I lock the screen?
I'm using an IBM Thinkpad t61 and wish to have the backlight switched off when locking the screen.I've been told to use gconf editor and un-check the backlight under apps->gnome-power-manager... Sounds good but the Powermanager does not appear in gconf-editor.
So I googled around with the result to use dconf-editor.
But where do I find the backlight now?
