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MacBook 5,1 - cant change brightness on 12.04

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linux-howto

http://askubuntu.com – Im a total newbie to Ubuntu and recently decided to give it a go on my early 2009 alu macbook. For about a week now I've been trying to get the brightness controls to work. I've tried the following: Brightness controls doesn't work on a MacBook Pro 5.5 (ubuntu 12.04 LTS) https://help.ubuntu.com/community/MacBookPro5-5/Precise#LCD None of it seems to work :( Next option was to try the Nvidia-bl-dkms drivers, but aftert installing the mactel ppa I just get this: Reading package lists... DoneBuilding dependency tree Reading state information... Done E: Unable to locate packa (HowTos)