Considering that the ACPI backlight interface is currently reporting the brightness as 0, it sounds very broken. Something you can try is
Section "Device" Option "Backlight" "intel_backlight" EndSection -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1273234 Title: Can't control screen brightness To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1273234/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
