If you're experiencing a "stuck at login" issue after updating to macOS 14.1 Sonoma on your MacBook Pro, it's likely related to the video kexts (kernel extensions) not being correctly loaded. This can happen if the kexts for your specific graphics setup are either missing or not compatible with the update. Here's a step-by-step guide to address this issue:
Boot into Safe Mode: Since you can boot into safe mode and login, start there.
Check Graphics Drivers: In safe mode, verify if the correct video kexts are loaded. If not, you'll need to update or reinstall them.
Reinstall/Update Kexts:
- Identify the graphics hardware in your MacBook Pro.
- Find the appropriate kexts for your graphics setup. You might need to download these from a reliable source if they're not available on the installation DVD.
- Install or update the kexts.
Basic Graphics Mode: If you can't find the exact kexts, you could try running in a basic graphics mode (like 1024 by 768) which might not require specific kexts.
Reboot: After updating the kexts, reboot your MacBook Pro normally and check if the issue is resolved.
This approach addresses the common cause of login issues related to graphics drivers, especially after an OS update which might have compatibility issues with existing drivers.
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