hello every one
i have a hp pavilion G6 working on windows 8.1 (64-bit)
this is the product number (Numéro de produit: D3F84EA#BH4)
when i try to play video games i hear no sound.
music ,films and videos on the internet work like a charm
i just have issues with video games like( pes 2014)
i've tried almost every thing
any help would be apreciated guys
i'm using uefi not bios 
