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    Windows 7 Adjusting brightness issue with Sony Vaio notebook running on Windows 7

    I am using a Sony Vaio VGN-SZ650N notebook model. I upgraded the OS to Windows 7 Professional 32-bit recently and got the dreaded "fn key malfunctioning" issue, which I was able to quickly fix by reinstalling drivers from Sony's website in a certain order. Changing the display brightness with...
    • aznricyboy
    • Thread
    • bios update brightness issue device manager display settings driver installation fn key geforce 8400m graphics card laptop drivers nvidia driver older models power options sleep mode sony vaio system restore tech support troubleshooting upgraded os windows 7 windows compatibility
    • Replies: 4
    • Forum: Windows Help and Support
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