Screen brightness issue with Fedora 18 / KDE 4

Running KDE version 4 on Fedora 18 with my HP Pavillon DV6 laptop, I wasn’t able to modify the screeen brightness.

This is how I’ve fix it

My configuration

KDE version

See below how I’ve fixed the problem

Modify thee bootloader configuration

Modify the parameter GRUB_CMDLINE_LINUX in /etc/default/grub with your preferred editor and append those parameters

Update Grub2 configuration

Everything should work after the next reboot

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