For specific step-by-step walkthroughs, these community-driven posts are excellent:
Before deep-diving into configuration changes, ensure your EFI/OC/Kexts folder contains the latest versions of these foundational plugins: hackintosh hdmi fix
If HDMI still fails:
: The "patcher" that allows other kexts to modify macOS processes. Download Lilu . For specific step-by-step walkthroughs
If your video works but audio doesn't (Settings > Sound > No HDMI option): No HDMI option):