[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

VK <v-kernel at kutty.cc> changed:

           What    |Removed                     |Added
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                 CC|                            |v-kernel at kutty.cc

--- Comment #105 from VK <v-kernel at kutty.cc> ---
My IvyBridge XPS-13 is unusable due to the backlight being turned off as of
3.10.5 (actually Fedora 19 with 3.10.5-201.fc19.x86_64 ) with UEFI plus Legacy
BIOS. Backlight control has worked on this system since I got it.

If an immediate fix is not ready, can the patch be reverted until a better
implementation is ready? IMHO, in the absence of a working solution, leaving
users with an unusable display is more severe than waiting for a more mature
implementation for brightness to work on older systems.

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