Imac27 backlight level only works on LiveCD 12.10

Bug #1080917 reported by artik
6
This bug affects 1 person
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gnome-power-manager (Ubuntu)
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Bug Description

Here is a strange bug. When I try few distros (Ubuntu 12.10 and mint 14 rc), I noticed I can change the backlight of my Imac27 (Finally !!! main report here : https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/818826)

But things goes better now, it works with LiveCD. Once installed (normal mode, not EFI), impossible to change backlight level anymore, only with liveCD. It's always on max. I also tried in EFI, but it's the same.

artik (jeff-artik)
description: updated
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