[Bug 63941] Can't control brightness with ATI 5650/Intel Ironlake when switched to radeon

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=63941

--- Comment #5 from Nikolay Amiantov <nikoamia at gmail.com> ---
Is there any way to trace ACPI calls and Intel card state (enabled or not)
on Windows? It works there, so maybe I can get some information.
29.10.2013 17:32 пользователь <bugzilla-daemon at bugzilla.kernel.org> написал:

> https://bugzilla.kernel.org/show_bug.cgi?id=63941
>
> Alex Deucher <alexdeucher at gmail.com> changed:
>
>            What    |Removed                     |Added
>
> ----------------------------------------------------------------------------
>                  CC|                            |alexdeucher at gmail.com
>
> --- Comment #4 from Alex Deucher <alexdeucher at gmail.com> ---
> The radeon driver should add a backlight control if the platform utilizes
> the
> GPU's backlight controller.  If there is no radeon backlight interface, the
> platform uses some OEM specific backlight control (probably Intel or
> ACPI).  I
> suspect you will have to use the intel backlight control to control the
> backlight.
>
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