Graphics driver missing on random reboots - imac 2011 using OpenCore Legacy Patcher

Hi all,

I'm running Macos Ventura 13.4.1 on my imac 2011 and it works great however after rebooting sometimes I loose the graphics driver (everything becomes slow and the doc becomes solid).

If I then run Opencore Patcher and run Post-Install Root Patch, it runs for a bit and then crashes. After the next reboot I still don't have graphics driver but if I run Post-Install Root Patch again, the installer works fine and graphics are working great.

But after a few reboots the system seems to forget the drivers and I end up having to do the above process.

My imac has a Nivida K2100m GPU which I installed after the original one died (common issue in imac 2011).

There are no hardware issues as I was running Linux before without any issues.

Can anyone suggest a fix?

submitted by /u/ceanth
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