The Witcher3

When i set preserve system gamma to ON the screen gets too dark for my taste.. but when i turn it off and go to gamma settings the wolf symbol/logo is not showing... so when i put it to brighter i dont see any difference ONLY when i put it to 100% bright it gets finally brighter and then its...

Hey, so i have 1080 ti on latest drivers. Everything works great in every game, except for witcher 3. There's a problem with screen freezing. Screen freezes, but there's still a sound and game works for a few more seconds, maybe more. Then it drops me to windows and closes the game. I'm using...