Hello! My iMac 2011 21.5 is running Sonoma (not courageous to update for Sequoia) and after installation complete, Apple logo shows up, progress bar starts to fill and almost in the middle of it, the screens go black and nothing happens. I'm able to log in safe mode by a terminal command, booting the last snapshot, and everything is almost normal, but whithout vídeo acceleration. Everytime I do the Root Patches by OCLP, the problem come back again and I got black screen I tried almost everything unsuccessfully, and haven't found a similar problem like mine. I think it's a graphic card issue, but not sure if it's a software or hardware problem. Need some ideas. Thanks
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