[Intel-gfx] i915 backlight

[Felipe Contreras]

On Fri, Aug 2, 2013 at 3:11 PM, Josep Lladonosa <jlladono at gmail.com> wrote:
> "Before" means with previous kernels that worked with
>
> GRUB_CMDLINE_LINUX="acpi_osi=Linux acpi_backlight=vendor"

That's probably a different issue. You would need to bisect the problem.

> I have not checked this issue with acpi_osi="!Windows 2012".

Please do.

-- 
Felipe Contreras