![]() Unless somebody explains to me different. As for Clover: It supports different OSs by providing OS Version-Folders to store different Kexts for the appr. So I need two different EFI Folders - one for each OS.ģ. I need different Kexts in Kext Folder for Cat and Moj e.g. Unless somebody has a solution to run iGPU on i9 10850K in MOJAVE without that.Ģ. In order to start/run Mojave with the i9 10850k using the iGPU, I need to set parameters in the Cpuid1DATA Cpuid1MASK as explained here (click) What are the differences in settings you use between Mojave and Catalina for CML UHD630? Both should call on the same CFL properties injection as I explained to you here and here, shouldn't they? I too am a little puzzled by your statement but it's a little hard to follow what you do through all those multiple threads.ġ. If you opt for 2 x different disks, your BIOS should normally be expected to offer some sort of boot menu after pressing a function key and you'd then choose which drive to boot from that menu. OpenCore does not allow such useful features unfortunately. You could select OS you want when your PC is starting up, no need to change boot option in BIOS or to clicking F12 to enter boot menuĪn alternative would be to switch to Clover because Clover supports calling different configuration files and adjusting settings through its main boot screen menu. Your boot options created manually will be shown with the correct mac icon, and there won't be a 'booting xxxx' text message before OS starts loading and apple logo shown on first boot delete any extra rEFInd boot options found (select them and press "-"). set rEFInd as the default boot option in the BIOS create rEFInd boot entries, specify path to the corresponding BOOT.efi for the each OC installation, set os type to MacOS, graphics = on you may need to add rEFInd to the BIOS boot menu via EFI Shell. install rEFInd onto any partition you created: set ShowPicker=false (to skip OC's menu as the rEFInd boot manager will be used for OS selection) install OC for the each partition, provide the corresponding plist and configure startup disk per each OS to create 2 different EFI partition (you'll loss about 100MB space only - that's almost nothing) Unless somebody has a really good Idea on how to improve integration of 10th Generation Intel CPUs with Mojave. maybe it would have been a better idea to go for an i9-9900K CoffeeLake, because it is supported by Mojave in the Late 2019 iMacs. I used SMBIOS imac19,1.īesides the iGPU everything runs flawless. Otherwise High Sierra or Mojave will not run. Its a standard OpenCore Installation for Comet Lake but you have to inject proper Cpuid1DATA Cpuid1MASK from the O CHACK/VectorSeven Github EFI. I then reboot, resetting NVRAM, than it goes away. The other 5% of the time, the Display has "glitches" after I boot the Computer. Not needing an additional Graphicscard (dGPU) It works for 95% of the time, which means I have a 4k Monitor hooked up via DP to the Displayport of the Asus Mainboard (iGPU). I experimented a lot with combinations and I ended up with this:īasically the device-id is from a Coffe-Lake iGPU, that is supported by Mojave in late 2019 iMacs, I guess. ![]() As a result I could not inject proper VRAM without the Display flickering, and glitching.Īfter I upgraded to Mojave things got easier. Whatevergreen claims that it natively supports iGPU 0x9BC5īut High Sierra (or Mojave) do not support this Generation of CPUs/iGPUs. However I temporarily installed an Nvidia GTX 770 and everything worked flawless.įor the iGPU I got errors on bootup like: (IGPU) Intel graphics driver failed to load could not registered with framebuffer ![]() I was not very successfull getting the iGPU working under High Sierra. I know, I could just install a used Nvidia Card from ebay. I tried numerous things, different device-IDs, Hackintool etc. Patch the IGPU using Opencore Framebuffer Patching with Whatevergreen. No Audio on DP and HDMI, iGPU only 18MB VRAM, the 2 Display-Monitors run in Mirroring Mode, no possibility to get them in seperated Mode (MacOS only recognices ONE Display) Wifi, Bluetooth, Ethernet, ALCS1200 AUDIO on the Motherboard all work flawless. I installed Opencore and finetuned the ist with īasically everything. To install High Sierra, I used this EFI from github by vectorseven. I9 10850K with UHD 630 - DP and HDMI output | iGPU-Device ID: 0x9BC5 This post is ONLY about getting the iGPU up and running. Maybe I'm not the only one who wants to keep running on High Sierra (or Mojave) because of hundreds of 32bit Plugins and Apps not running on Catalina or Big Sur, but still take advantage of faster CPUs.
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