Comment 272 for bug 1098216

Thanks for your work on this Aaron! I've upgraded to kernel 3.12.0-rc5 and applied the patches. When I set video.use_native_backlight=1:

* everything works fine!
* /sys/class/backlight contains only intel_backlight
* there seem to be 21 brightness-levels available with gnome-power-manager
* the lowest level turns the backlight completely off (this doesn't happend with acpi_osi="!Windows 2012"), is this intentional?
* as already expected it is not longer possible to tune the brightness-level with the Fn+Keys, while working on a virtual-terminal
* thinkpad_acpi seem unhappy about the brightness-interface (see dmesg)

> thinkpad_acpi: http://ibm-acpi.sf.net/
> thinkpad_acpi: Unsupported brightness interface, please contact
> <email address hidden>

Looks good.