- Joined
- Feb 19, 2015
- Messages
- 6
- Motherboard
- GA-x99m
- CPU
- i7-5930k
- Graphics
- GA-gtx970
- Mac
- Classic Mac
- Mobile Phone
Thanks! This worked for me. After update I got black screen after boot. This fixed it, and everything works nowFix for black screen with iMac 15,1 sysdef and GTX 780
Edit the AppleGraphicsControl.kext and burrow down to /Contents/PlugIns/AppleGraphicsDevicePolicy.kext/Contents/Info.plist
> IOKitPersonalities
> AppleGraphicsDevicePolicy
> ConfigMap
FA842E06C61E91C5 change from Config 2 to none.
Save changes and reinstall kext. Reboot.