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Anything about Ubuntu, Centos, openSuSe and Fedora
Recently I’ve discovered that my Lenovo G410’s Brightness key (Fn + Up / Down) is not working in Ubuntu 9.10 which is previously fine in 9.04, and found out that there are various fix but the easiest is as follows:
1. Modify your grub.cfg
sudo vi /boot/grub/grub.cfg
2. Add the word “nomodeset” on the end of the kernel options.
linux /boot/vmlinuz-2.6.31 ... quiet splash nomodeset
3. Then save the file and reboot the system.