vamose Posted January 31 Share Posted January 31 Need help with sleep and wake functionality. System is stable no issues, except sleep, manual sleep or auto sleep (system does go to sleep as per the power settings) But wakes to black screen. Attached is the complete EFI folder along with NVRAM folder. Have disabled: Enable Power Nap Wake for network access Tried to create NVRAM.plist but no luck, on the boot screen greeted with "OCVAR: Emulated NVRAM load failed - Not Found" 427714616_BootFolder.zip Link to comment Share on other sites More sharing options...
Suddzz Posted February 3 Share Posted February 3 (edited) Try this EFI, add platform info into the plist as it is missing and make sure you have a backup of your old efi, and a boot USB incase. Clean nvram at opencore boot screen before booting. EFI.zip Edited February 3 by Suddzz Link to comment Share on other sites More sharing options...
vamose Posted February 6 Author Share Posted February 6 (edited) Thanks a lot for the EFI file. Using iMac19.1 profile, but no luck. Still the black screen. On the EFI partition, there is EFI folder and the NVRAM folder ( 2 folders in the root). Copy of NVRAM folder attached. When I try to reset the NVRAM at the boot, message prompt: "OCVAR: Emulated NVRAM load failed - Not Found" NVRAM.zip Edited February 6 by vamose empty folder Link to comment Share on other sites More sharing options...
Suddzz Posted February 6 Share Posted February 6 iMac 19,1 wont work with the hardware in your sig pal, you will have issues with power, sleep etc. Link to comment Share on other sites More sharing options...
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