Administrators Hervé Posted March 9, 2021 Administrators Share Posted March 9, 2021 Try: adding property injection to set fbmem to 9MB switching SMBIOS to iMac19,2 Link to comment Share on other sites More sharing options...
marliwahoo Posted March 13, 2021 Author Share Posted March 13, 2021 Unfortunately, no luck. I'm going to give it a rest for a week or so and revisit it with a fresh perspective. Thanks for all the help. Link to comment Share on other sites More sharing options...
marliwahoo Posted March 15, 2021 Author Share Posted March 15, 2021 Not exactly Phi Beta Kappa ...... but pink screen fixed with override via "one-key-hidpi" script. Not sure why my attempt at an override failed. Working: Graphics - fully working Built-in display w/framebuffer patch & with edid override via one-key-hidpi External hdmi w/framebuffer patch Display port working without any patch USB Mic, Internal speakers Ethernet, Original Intel wifi and bt Card Reader - (but not hot plugging) Not working yet: sleep - crashes shortly after sleeping headphones built-in camera - though it shows up in usb and FaceTime (black screen) pic below. touchscreen Not sure: hdmi sound Link to comment Share on other sites More sharing options...
marliwahoo Posted March 20, 2021 Author Share Posted March 20, 2021 I thought I'd post my EFI folder. https://drive.google.com/file/d/1etOA3P7vdrlxWLn4PpEBvkapLyE-zn3c/view?usp=sharing Biggest issue: Sleep crashes. I's love some suggestions on fixing this. Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted March 20, 2021 Moderators Share Posted March 20, 2021 what error did you get? Link to comment Share on other sites More sharing options...
marliwahoo Posted March 21, 2021 Author Share Posted March 21, 2021 Here it is. Im not sure it helps. It crashed on wake, but I never tried to wake it. It started to sleep, waked itself instantly, crashed, then restarted. Sleep Wake failure in EFI.pdf.zip Link to comment Share on other sites More sharing options...
marliwahoo Posted March 25, 2021 Author Share Posted March 25, 2021 I have tried several of the items in opencore post-install instructions to fix sleep. With no luck. Still trying to figure out sleep. Link to comment Share on other sites More sharing options...
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