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I have a Hasee FU505 laptop it came with a Linux Red flag OS, i removed the Linux and installed a Windows seven instead, the Hasee website provide drivers only for windows vista, i downloaded these drivers and installed it,they worked fine except when i change the screen brightness from windows the changes doesn't take effect till i restart the computer, how troubleshoot this.

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It's probably a power management driver problem. Maybe you should contact their customer service to get a better version. –  billc.cn Jan 7 '12 at 23:00
    
I've searched the device manager and i couldn't find the driver you mentioned did i miss something ? –  major Jan 10 '12 at 4:15
    
It may be hidden in the non-plug-and-play device category and it normally relies on a SMBus driver to communicate with the motherboard. Check if you have both of them. The former may have a very strange name, so you may have to google for it. –  billc.cn Jan 10 '12 at 14:41

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