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On my macbook pro the screen brightness key doesn't work. For it to work I have to type in sudo modprobe -r apple_gmux sudo modprobe apple_gmux Everytime I start up ubuntu. Is there anyway to fix this or auto run it.

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To run a script as root on startup, simple edit /etc/rc.local file and add the script as separate lines to it, before the exit 0 line. Remember that you need root privileges to edit that file.

gksudo gedit /etc/rc.local

and note that sudo is not needed when inserting commands in this file, i.e. only add:

modprobe -r apple_gmux
modprobe apple_gmux

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