lichking

I didn't inject any gpu property because and because 59120000 has already been injected in DeviceProperties/PciRoot/Add in your Kaby Lake config.plist as AAPL,ig-platform-id=00001259. Correct me if I'm wrong. I recall that 59128086 works with Clover and 59120000 with OC.

I tried to change SMBIOS (originally imacpro1,1) to iMac18,1 as advised in OpenCore Installation Guide. But the black screen issue happened again unless I changed the SMBIOS back.

hi. I used Olarila's Kaby Lake Desktop Opencore EFI files to boot Monterey beta 10 with iGPU only. Every time it got to the login screen, the screen went black for several seconds before back to normal. It seemed that no video data was transferred through the HDMI cable during the black screen period. If you've got any idea to fix it, please help me out. [update] delete agdpmod=pikera