AMD Radeon HD 8750M and Intel 4000 not working

Kristoffer Caberto

Honorable
Jul 18, 2013
2
0
10,510
My friend installed a driver update here in my laptop and after that I got a problem with the brightness of my screen, it's all really dim. I uninstalled the driver update then my built in graphics card (Intel Graphics HD 4000) can't be detected anymore and my AMD Radeon HD 8750M isn't working too. My screen is still dim. What should I do?