yosemite graphics problem on macbook

Hello, ever since I've upgraded to OSX Yosemite, any time I use an app that switches to discreet graphics, my macbook freezes and requires a hard reboot. I have since installed a program that forces everything to use integrated graphics, but obviously that is a bandaid at best. Is anyone else having issues with their graphics cards post Yosemite?

Apps that caused crashes (so far): Adobe Photoshop CS6, Hearthstone, MPlayer OSX Extended, and basically any game that tries to use the discreet Nvidia graphics card.