9 Replies Latest reply: Jan 6, 2013 1:39 PM by littlekubo
Georgui Level 1 Level 1



I have iMac 21 with 16 gb of RAM.


The problem im encountering is screen brightness controls do not work eather from keyboard nor from system prefrences.


Bootcamp 4.0


After i Install Bootcamp, screen brightness works only untull a next reboot, then i have to reinstall it again and it will not work any more.


Any ideas how i can fix that?

Solved by Georgui on Jan 24, 2012 8:40 PM Solved

Problem solved but not by what you have offered.


All i had to do is to delete rEFI from my system. It solved the problem at no time.