Administrators Hervé Posted March 9, 2021 Administrators Share Posted March 9, 2021 Several things to revise in your Clover config: CPU power management is all wrong: no need to drop CpuPm and Cpu0Ist tables with a Coffee Lake platform, those drops applied to Sandy & Ivy Bridge systems. In the same respect, remove Generate P States/C States, that applied to Core2Duo/1st gen Core CPUs. I'm quite surprised by the number of ACPI patches you've selected. Are you sure you need all of them? i5-8500 is indeed Coffee Lake with UHD630 iGPU so why did you select Kaby Lake iMac18,3 SMBIOS instead of iMac19,2? Change that. You appear to inject the correct device properties forUHD630 graphics but you only patched con0 and con2 connectors (i.e. video output ports). DP or HDMI audio require that the associated connector bet set to HDMI type 00080000. So, check in IOReg which port connects to your DP or HDMI screen and patch its type accordingly. In your config, only con0 is set to HDMI type. Clover chime, you should easily find out if you search a little better the Clover documentation. Hint: something to do with an audio module/driver... Strangely enough, no ACPI folder in the zipped EFI you posted so I'll assume you're not using any patched DSDT or SSDT. If you do, please post your full EFI. Given that you have a Pascal GTX1060 graphics card in your desktop, you are using the nVidia Web Driver, right? Link to comment Share on other sites More sharing options...
ryuu_nami Posted March 10, 2021 Author Share Posted March 10, 2021 @Hervé I've changed my smbios to imac19,2. But boot process shows that high sierra is not compatible with this platform.( screen shot included) I've remove cpupm and cpu01st table drop and generate p states/c states. I am not using any DSDT or SSDT. I don't how to patch. I am still a newbie. Yes I am using nVidia Web driver. I removed the audiodex.efi and no chime now. But I didn't find the wav file. Is the sound generated on the fly? I need to use high sierra, because I am using a gtx1060 graphics card. Anything higher than high sierra won't work. I am stuck here. I can't get back into my system now. What can i do to cope with that? Thank you! Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted March 10, 2021 Moderators Share Posted March 10, 2021 add to boot arg -no_compat_check but you'll need a bootable disk to get back into the system 1st. Link to comment Share on other sites More sharing options...
ryuu_nami Posted March 10, 2021 Author Share Posted March 10, 2021 @Jake Lo I get into the system and actually nothing changes. I remove all acip renames. I actually don't need them. I am using my nvdia gup to drive my diskplay and i see from ioreg that i use con2 and type info is correct I think. I am using a Benq display and it has two three inputs one hdmi one dp and one vga. I use hdmi for my mac mini and dp for this dell hackintosh. When i switch from hdmi input to dp, i get a flash of the desktop and then it turns into black screen. i have to reboot my display to see my desktop again. I think it is due to connection type. I patched con type in clover but i doesn't work. (screen shot attached) I use my igup in headless mode. So i changed AAPL,ig-platform-id from 07009B3E to 0300913E, but i got a "could not register with framebuffer driver" message during boot up. It seemed i have broken something. Also I lose h264 decode capibility. I am really frustrated. How can I get out of this mess? Link to comment Share on other sites More sharing options...
ryuu_nami Posted March 10, 2021 Author Share Posted March 10, 2021 Is it possible to use a headless iGPU in High Sierra? I want to use this machine to edit video. I need iGPU acceleration. Link to comment Share on other sites More sharing options...
Administrators Hervé Posted March 10, 2021 Administrators Share Posted March 10, 2021 Yes, of course it is; you jut need the correct settings on your bootloader config. Link to comment Share on other sites More sharing options...
ryuu_nami Posted March 10, 2021 Author Share Posted March 10, 2021 @Hervé I think I am using correct framebuffer settings.why do I get counterproductive result? Nothing has changed after I change to 19,2 except I lose h264 decoding ability and a boot up delay telling me “could not register frame buffer driver”. As for a new comer，this is how far I can get. I don’t known where I should head for. So what exactly do you mean by correct config? Thank you! Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted March 10, 2021 Moderators Share Posted March 10, 2021 From what I had read, the best result would be to use 0300923E and iMacPro1,1 Link to comment Share on other sites More sharing options...
ryuu_nami Posted March 10, 2021 Author Share Posted March 10, 2021 @Jake Lo I give it a shot and the result is no good. I seemed to lost all my decode abilities. (screen shot included). Any other sugesstions? it seems that imac19,2 can cover my cpu, but it is not recognized by high sierra. But i just can't use mojave or higher. I need my gtx1060 to work. Link to comment Share on other sites More sharing options...
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