Can't adjust screen brightness G55

[sing_css]

Hey, guys I am suffering few problems about the screen brightness. I can adjust it after hibernation and it will auto adjust to 100% brightness while I back to desktop in the middle of playing some game . Anyone can help me? Thanks a lot!

[SUKARA]

What's os version are you using?
sleep mode has the problem,but if you into standby mode back to windows have the same phenomenon?