HP G6 pavillion 2137tx brightness option not working after installing window 7 ????

[Paramvir Jakhar]

hello forum members and experts i need your help related to my Laptop HP G6 pavillion 2137 tx. my brightness and contrast option not working after installing new window.
Actually i brought my laptop with window 7 Home basic 64 bit and drivers (pre installed) but now when i install DVD of window 7 professional 64 bit and all the drivers, i found laptop doing all the function but brightness not increasing or decreasing. But laptop just showing Brightness bar.
Help me plz...

 

[mrbals]

i think you need to get the compatible driver for your pc.i suggest you use the option of'"roll back driver"" in the driver properties tab from device manager.all d best