[Bug 47941] [snb] Backlight control broken between 3.6.0-rc1 and 3.6.0-rc4

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=47941

--- Comment #103 from Eric Griffith <EGriffith92 at gmail.com> ---
Daniel, this ONLY breaks on IVY BRIDGE Dell XPS 13z's-- Sandy Bridge is working
just fine now on 3.10.5. So if you do revert this, don't just tear it out. Just
remove the PCI-checks to enable the quirk on Ivy Bridge, keep it in place for
Sandy Bridge.

Now, that being said I don't have a clue what IS happening on Ivy Bridge since
I don't have a Gen2 Dell XPS 13z laying around. Maybe Kamal and Evan can figure
out whats going on with this one :-/ Was initially a little upset that I didn't
snag an Ivy Bridge but with this maybe its a good thing.

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