Originally Posted by masonm
I had to switch over to Gnome to check this. Your menu at the top, System > Preferences > Power Management
Yes. Thank you. I did do that when I was running Gnome and it didn't work for me at the time. That's why I was wondering if there's some other file besides xorg.conf that needs to be edited.
Perhaps Gnome needs to be my default desktop for the xorg.conf settings to work in Gnome?