| 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 |