[Bug 62281] intel_backlight not working

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=62281

Jani Nikula <jani.nikula at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |RESOLVED
         Resolution|---                         |CODE_FIX

--- Comment #25 from Jani Nikula <jani.nikula at intel.com> ---
(In reply to Aaron Lu from comment #23)
> Nice work Jani, thanks for the VBT patches!

Thanks, perhaps this helps in moving forward with defaulting to native
backlight when available, without quirks!

(In reply to jrg.otte from comment #24)
> Now I have only acpi_backlight under /sys/class/backlight.
> 
> Backlight works now. It's using acpi I presume.

That's correct. Thanks for the report and testing.

Fixed by these two commits in drm-intel-fixes, which will be queued for 3.15:

commit d76fedf1980022912508e742660cebdc27c7a010
Author: Jani Nikula <jani.nikula at intel.com>
Date:   Wed Apr 9 11:22:06 2014 +0300

    drm/i915: check VBT for supported backlight type

commit 1901dd794a87911d82edab57dc6f87c7fe9c9bfc
Author: Jani Nikula <jani.nikula at intel.com>
Date:   Wed Apr 9 11:31:37 2014 +0300

    drm/i915: do not setup backlight if not available according to VBT

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