Install amd official driver on kernel 3.4

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http://askubuntu.com – I installed kernel 3.4 on my ubuntu 12.4, in my previous kernel i installed amd graphic official driver with http://ubuntuforums.org/showthread.php?t=1930450/ instructions.But when i install new kernel i encounter this problem How do I fix ' running in low graphics mode' Ubuntu 12.04 and after i remove amd official driver ubuntu with new kernel boot with open source driver but my problem with this driver is that it use many power and battery of my laptop and my laptop is hot! How can i install amd official driver on my ubuntu with kernel 3.4? my laptop info: hp dv6 6080 core i7 hyb (HowTos)