From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 63941] Can't control brightness with ATI 5650/Intel Ironlake
when switched to radeon
Date: Tue, 29 Oct 2013 06:40:34 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=63941
Jani Nikula changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|Video(DRI - Intel) |Video(DRI - non Intel)
Assignee|intel-gfx-bugs@lists.freede |drivers_video-dri@kernel-bu
|sktop.org |gs.osdl.org
--- Comment #3 from Jani Nikula ---
(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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