| Symptom | Likely Fix | Time |
| :--- | :--- | :--- |
| Black screen until macOS login | Remove -wegoff; Ensure WhateverGreen is latest | 5 min |
| Pink/green screen (4K TV) | Disable HDR in macOS; Set color profile to "RGB" | 2 min |
| Monitor goes to sleep at boot | Add igfxonln=1 to boot-args | 1 min |
| HDMI works in recovery but not OS | SIP is blocking patches; set csr-active-config to FF0F0000 | 5 min |
| HDMI works, then dies on wake | Add -hbfx-patch-pci to boot-args | 3 min |
| Only 1 of 2 HDMI ports work | You are using the wrong physical port. Try the other one (usually #2) | 1 min |
For very stubborn HDMI black screens (especially on laptops): hackintosh hdmi fix
For those who want a more robust solution, the open-source community provides a comprehensive guide via the WhateverGreen kernel extension (kext). This is often where veterans start. | Symptom | Likely Fix | Time |
Instead of guessing, the WhateverGreen manual provides pre-calculated patches for almost every Intel framebuffer. You can inject these properties directly into your bootloader (OpenCore or Clover). This involves finding the specific "bus ID" for your HDMI port. For very stubborn HDMI black screens (especially on
This is the most common scenario (laptops and desktops without a discrete GPU). The fix centers on correcting the framebuffer settings in OpenCore’s DeviceProperties.