I have a Mac Pro 5,1 with Dual CPU (Xeon x5680) and an AMD VEGA56. I installed macOS Sonoma, and the installer and upgrade process ran smoothly. After the installation, I installed the KDK (Kernel Debug Kit) and the Opencore Pre and Root Patches. After rebooting, it started up normally, but after rebooting again, it loads up to 1/3 of the progress bar and then the screen goes black (monitor shows "No Signal").
I can't understand why it works initially and then doesn't. Please help, I need to get this working by tomorrow.
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