How to Fix Stuck on PCI Configuration Begin - OS X Yosemite
Graphics issues usually stem from an unsupported GPU, missing acceleration patches, or incorrect boot arguments.
Quick Fix Steps
- Verify GPU support: Check if your GPU model is natively supported in your target macOS version via WhateverGreen documentation.
- Update kexts: Ensure Lilu and WhateverGreen are current and loaded before other GPU-related kexts.
- Check boot arguments: Add
-v keepsyms=1 debug=0x100for debugging, oragdpmod=pikerafor modern AMD cards. - Test Metal support: Open About This Mac > System Report > Graphics and confirm Metal is listed.
Verification
- Graphics acceleration is smooth (not CPU-bound).
- Metal is reported in System Information.
- No GPU-related kernel panics on boot.
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Original Question: "Stuck on PCI Configuration Begin - OS X Yosemite"
Vanilla install of course, I can't even get into the installer.
Here are my specs:
Mobo: Gigabyte 945GCM-S2L
Processor: Intel Pentium Dual CPU (E2180) @ 2.00GHz
Graphics Card: ATI Radeon HD 4350
I know, it's very very old, it's just a project and also a personal challenge. I've tried all sorts of boot args (dart=0, npci=0x2000, npci=0x3000, PCIRootUID=1, PCIRootUID=0) but they don't work. Any ideas?
Here's the whole log: https://imgur.com/a/m1KzYmJ
Thanks in advance!
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