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Vaio VPCs13a7e and LCD brightness

Last response: in Laptop General Discussion
January 27, 2013 11:18:01 AM

I have a Sony Vaio VPCs13a7e.
I changed hard disk, and reinstalled Windows 7 64 bit from a DVD, but now I'm not able to increase brightness of LCD.
The LCD brightness is the lowest, even if I installed Intel Graphic Driver and set it as maximum.
When I boot the laptop, I get an higher brighness for a while...when Windows 7 is ready to be used, the brightness becomes very low.
I did not install any Vaio's suggested program from Vaio VPCS13a7e web site.
How can I increase brightness?
Thank you
January 27, 2013 11:30:29 AM

You might have it on a power saving mode. Try changing it.
a b $ Windows 7
a b D Laptop
January 27, 2013 11:32:45 AM

Install the drivers for the function keys from sony website.
January 27, 2013 11:39:19 AM

I've already check it, I'm not on power save.
I set Full Brightness and maximum performance.
I suppose some features or utility are missing, but I'm not able to find which one.