AN UNFORTUNATE SERIES OF EVENTS THAT ENDED IN LEARNING AND RECOVERY.
A bit of short backstory…
January 2025: I am the recipient of three additional displays. But I need a third video card to run them. I have been semi-updating OCLP on my MacPro until I start to see that most of those updates largely pertain to Sequoia and I'm on Sonoma.
I buy a new video card that supports four additional displays. I have a momentary thought about updating root patches after I have installed this card, but discard the thought.
About a month ago: I install Tinkertool and made two setting changes that affect the system graphically (but minorly). The system wants a restart. No thanks, I'll wait. A few weeks later, I'm up early and I see that my MP will not wake from sleep. There are gray screens. No matter., restart.
Uh-oh. Gray screens on automatic login. Reinstall the OS, reinstall root patches and no joy. So, I remember that I had those changes with TinkerTool. I boot into safe mode and revert the changes. Reboot. Yay! All good!
Until Saturday morning (the 19th of July 2025). Uh-oh, gray screens again.
Saturday, July 19, 2025: Begin a series of reinstall OS, reinstall root patches, remove root patches, etc, etc. Nothing works. I put it aside until this morning.
Sunday, July 20, 2025: I remember that back in January, the root patches I had installed were those when my two original video cards were the ONLY cards installed. It occurs to me, that perhaps OCLP is seeing the third video card and installing the WRONG drivers. The third video card is a PC card, not flashed to Mac. My two original cards WERE flashed to Mac (with boot screens).
It slowly dawns on me that perhaps I should pull the third video card, reinstall root patches and THEN reinstall the third video card. Voila! All ten displays are back!
FIRST LESSON LEARNED: Do NOT install or use anything that may mess with any system stuff concerning graphic or video!
The first time around with the gray screens, had I simply booted in to safe mode and reverted the Tinkertool changes, I would probably not be typing this message.
SECOND LESSON LEARNED: If you EVER reinstall root patches again (and I'm talking to myself here), PULL THE THIRD VIDEO CARD FIRST!!!!!! Then reinstall root patches!
I wish to thank God here, for whom I asked guidance on this. He brought things back to mind when I prayed about it. I really did not want to revert to Catalina or any other OS. And considering that I'd still be dealing with that third video card none of it might have worked.
Anyway, I am now on Sonoma 14.7.6, instead of 14.6.1. Screens are now set to never sleep, but only start screensaver.