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Black screen at login screen after updating

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alexlab

alexlab

Joined
Dec 2, 2015
Messages
58
Motherboard
ASUSTeK COMPUTER INC G501JW
CPU
Intel® Core™ i7 4720HQ
Graphics
NVIDIA® GeForce® GTX 960M with 4G GDDR5 VRAM
Mac
  1. 0
Classic Mac
  1. 0
Mobile Phone
  1. 0
I have been using hackintosh for a few months now and havee never had any problems regarding the updates, however after updating yesterday i am unable to login in since i get a black screen after the loading bar (which i now works differently). Any ideas on what i can possibly do? I am still able to boot on the usb with the initial version of my hackintosh.
 
alexlab said:
I have been using hackintosh for a few months now and havee never had any problems regarding the updates, however after updating yesterday i am unable to login in since i get a black screen after the loading bar (which i now works differently). Any ideas on what i can possibly do? I am still able to boot on the usb with the initial version of my hackintosh.
Click to expand...

UHD screen requires pixel clock patch to CoreDisplay.
Did you patch it?
 
RehabMan said:
UHD screen requires pixel clock patch to CoreDisplay.
Did you patch it?
Click to expand...
No i did not, can you provide me a guide please?
Also does that mean that if i decrease my monitors resolution to 1080p the black screen will be fixed?
 
I managed to set DVMT-prealloc to 128MB (96MB not available) and set the ig-platform-id to 0xa2e0008 but how am i supposed to patch the IOKit Framework if i cant boot? Loading screen is now stick at around 75% instead of going black.
I uploaded my config
 

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alexlab said:
I managed to set DVMT-prealloc to 128MB (96MB not available) and set the ig-platform-id to 0xa2e0008 but how am i supposed to patch the IOKit Framework if i cant boot? Loading screen is now stick at around 75% instead of going black.
I uploaded my config
Click to expand...

You boot with an invalid ig-platform-id, then patch IOKit (Sierra is actually CoreDisplay patch), then reboot with valid ig-platform-id.

Make sure you have the correct patch for 0xae20008 128mb active in your config.plist.
 
RehabMan said:
You boot with an invalid ig-platform-id, then patch IOKit (Sierra is actually CoreDisplay patch), then reboot with valid ig-platform-id.

Make sure you have the correct patch for 0xae20008 128mb active in your config.plist.
Click to expand...
What would the invalid ig-platform-id be? Can i just use random numbers?
 
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