tazorro Posted February 23, 2022 Share Posted February 23, 2022 Hi, I managed to install Macos Catalina on my XPS9370 with i5-8250U and get everything working except the uhd 620 4K which sees at 31mb. I followed dortina's guide for Kaby Lake r to set UHD but nothing. I tried a thousand settings but nothing. If anyone could help me. EFI00.zip Link to comment Share on other sites More sharing options...
Administrators Hervé Posted February 23, 2022 Administrators Share Posted February 23, 2022 You're injecting incorrect properties for KBL R UHD620 iGPU: iGPU device id 0x87C0 is for Amber Lake iGPUs, not Kaby Lake Refresh... See the WhateverGreen user manual: https://github.com/acidanthera/WhateverGreen/blob/master/Manual/FAQ.IntelHD.en.md For Kaby Lake R platform with UHD620 graphics, you should be using: KBL framebuffer 0x591B0000 iGPU device id 0x5916 On my Kaby Lake R Latitude 7490 with UHD620 graphics, I was successfully using: KBL framebuffer 0x59160000 iGPU device id 0x5916 as described in my associated guide available here and only patched 2nd connector con1 for HDMI type (I don't fully understand why you inject properties for all 3 connectors con0, con1 and con2). Link to comment Share on other sites More sharing options...
tazorro Posted February 24, 2022 Author Share Posted February 24, 2022 I have set these parameters as per Dortian guide 0000C087 Laptop Recommended for Amber Lake's UHD 617 and Kaby Lake-R's UHD 620. I will try to modify these parameters as you have suggested. A thousand thanks Link to comment Share on other sites More sharing options...
Administrators Hervé Posted February 24, 2022 Administrators Share Posted February 24, 2022 3 hours ago, tazorro said: I have set these parameters as per Dortian guide 0000C087 Laptop Recommended for Amber Lake's UHD 617 and Kaby Lake-R's UHD 620. [...] Not for the device id, absolutely not. https://dortania.github.io/OpenCore-Install-Guide/config-laptop.plist/kaby-lake.html#deviceproperties Link to comment Share on other sites More sharing options...
tazorro Posted February 24, 2022 Author Share Posted February 24, 2022 i set all AAPL, ig-platform-id as WhateverGreen user manual and device id always 1659000 but it always crashes. 0x5912 0x5916 0x591B 0x591C 0x591E 0x5926 0x5927 0x5923 Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted February 24, 2022 Moderators Share Posted February 24, 2022 For 4K display, you might need to set DVMT to 64mb or 128MB by using Grub shell commands. Link to comment Share on other sites More sharing options...
tazorro Posted February 24, 2022 Author Share Posted February 24, 2022 it is already set by default to 64 mb Link to comment Share on other sites More sharing options...
Administrators Hervé Posted February 25, 2022 Administrators Share Posted February 25, 2022 Your system's not crashing; just failing to initialise graphics due to incorrect settings. If DVMT is already preset to 64MB in BIOS, there's no need for you to patch framebuffer memory and DVMT in your config so get rid of those patches. You must however fake iGPU id 0x5916. For the rest, experiment with the various mobile KBL framebuffers if the recommended ones don't appear to work. Also make sure you use MacBook Pro15,2 SMBIOS. The following properties injection should suffice: AAPL,ig-platform-id 00001659 DATA // or maybe 00001B59 device-id 16590000 DATA framebuffer-con1-enable 01000000 DATA framebuffer-con1-type 00080000 DATA hda-gfx onboard-1 STRING Just in case, you may want to replace the disable-external-gpu property by boot arg -wegnoegpu. Also make sure Optimus is enabled in BIOS or you'd only run on the nVidia dGPU which will be unsupported. Link to comment Share on other sites More sharing options...
tazorro Posted April 3, 2022 Author Share Posted April 3, 2022 Hi, after endless attempts I was able to have graphics acceleration using these parameters: ig-platform-id 00001B59 DATA device-id 12590000 DATA enable-hdmi20 01000000 DATA The system runs well without uncertainty. I decided to try to upgrade to Big Sur but eventually get the prohibition symbol. Some advice? Link to comment Share on other sites More sharing options...
Administrators Hervé Posted April 3, 2022 Administrators Share Posted April 3, 2022 Open up a new thread for this separate issue. Link to comment Share on other sites More sharing options...
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