Comment 7 for bug 881202

This is reported also on the manufacturer board :

http://forums.lenovo.com/t5/Linux-Discussion/G570-Ubuntu-11-04-And-Function-Keys/m-p/495971#

BTW do you have an image of your bios or can you backup one of this :
DMI: LENOVO 20078 /Base Board Product Name, BIOS 40CN08WW(V2.07) 05/23/2011

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http://rzr.online.fr/q/lenovo#keyboard
Lenovo G470 | Model Name : 20078 | M fg Date: 11/03/23 | BIOS: 40CN23WW(V2.09) 06/20/2011 | OS:GNU/Linux/Debian