[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

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|Video(DRI - Intel)          |Video(DRI - non Intel)
           Assignee|intel-gfx-bugs at lists.freede |drivers_video-dri at kernel-bu
                   |sktop.org                   |gs.osdl.org

--- Comment #3 from Jani Nikula <jani.nikula at intel.com> ---
(In reply to Nikolay Amiantov from comment #1)
> Interesting enough, if unused Intel card is powered up, brightness works
> properly.

It looks like i915 is in control of the backlight. Either it was designed this
way, or there's an additional mux that needs switching for backlight, or
something else... I don't really know.

Reassigning to non-Intel, maybe the Radeon folks have more clues?

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