I can confirm this issue on my UX32VD running Ubuntu 13.04. However I don't know how this issue could be solved. The BIOS tells us the maximum brightness value accepted but the minimum accepted value is always 0. The actual behaviour of the different brightness values is decided by the hardware, that means we have no way of knowing whether 0 means backlight off or minimal backlight on a specific machine, unless by maintaining a list of hardware that turns backlight off when brightness is 0.
** Changed in: gnome-control-center (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1093325 Title: Lowest brightness setting renders screen black To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1093325/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs