dunhill Posted March 12, 2020 Share Posted March 12, 2020 Hi experts, I am sorry for my bad English and I am newbie of Hackintosh My laptop is Dell Inspiron N3421 with configuration as bellow: RAM 4GB CPU Intel Dual Core i3-3217U, 1.8GHz Display Hybrid Intel HD4000 and nVidia GT625M Sound Realtek ALC282 WiFi Atheros AR9565 LAN Realtek RTL8100E I use config.plist by Rehabman and collect kexts from many sources to install macOS 10.12 successfully on my laptop. But the screen is always flickering, and I think that nVidia GT625M is not disabled. I have read many times instruction by Rehabman to disable nVidia GT625M but I do not understand, it is very complicated for me to do. Could some one please help me to patch DSDT and SSDTs to disable nVidia GT625M to reject screen flickering. Please see the attached pictures and EFI file for details. I am sorry if the post is wrong place Thank you very much EFI.zip Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted March 12, 2020 Moderators Share Posted March 12, 2020 Give this a try. Add to /E/C/A/Patched. You might have to add it to the Config file under SSDT sorted order SSDT-Disable-DGPU.aml.zip Link to comment Share on other sites More sharing options...
dunhill Posted March 13, 2020 Author Share Posted March 13, 2020 Thank you for the answer. For the file config.plist, I confuse that whether I do correctly or not, please see the attached picture. Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted March 13, 2020 Moderators Share Posted March 13, 2020 what app is that you're using? I use Clover Configurator Link to comment Share on other sites More sharing options...
dunhill Posted March 13, 2020 Author Share Posted March 13, 2020 I can not use Clover Configurator due to flickering screen. So I used Cloud Clover Editor (https://cloudclovereditor.altervista.org/cce/index.php), run on web browser of Windows Link to comment Share on other sites More sharing options...
Administrators Hervé Posted March 13, 2020 Administrators Share Posted March 13, 2020 What is the screen resolution? Link to comment Share on other sites More sharing options...
dunhill Posted March 13, 2020 Author Share Posted March 13, 2020 The screen resolution is 1366x768, Intel HD Graphic 4000 Screen flickers when keyboards/touchpad or discrete mouse are used Link to comment Share on other sites More sharing options...
Administrators Hervé Posted March 13, 2020 Administrators Share Posted March 13, 2020 Ok, then layout 0x01660003 that you're using is indeed the correct one. The being said, a few things to be said about your Clover config. It's probably an old one you picked up somewhere and it needs some adjustment. Proceed as described below, using Clover Configurator app: ACPI section: Add patches that rename legacy USB controllers from EHC1/EHC2 to EH01/EH02 Select FixDarwin7 fix Remove Drop OEM + Generate P States + Generate C States (these are for C2D/C2Q/1st gen Core platforms) Apply Drop tables for SSDT with id CpuPm and Cpu0Ist Select FixHeaders Boot section: Remove boot parameter kext-dev-mode=1 (it was only for Yosemite and has long been obsolete and useless) Add boot parameter nv_disable=1 Devices section: Remove all those zero/null values entered in the 8 x Faking ID fields; leave them blank Remove those nVidia properties in the Add Properties part Graphics section: Remove NVCAP value (it's for nVidia GPUs) Remove Display-cfg value (I don't believe this to be required at all) Remove ig-platform-id value (should be taken care of by Lilu + WEG) Kernel and kext Patches section: Add AppleRTC patch Once you've finished adjusting your Clover config: generate your CPU-specific power management SSDT with Pike R Alpha's well-known generator script/tool (you can Google for it) and copy it to ACPI/patched folder of your Clover EFI. remove AppleBacklightFixup kext. Not required with Lilu + WEG check that you use latest versions of your add-on kexts, especially Lilu + WEG; update as/if required Link to comment Share on other sites More sharing options...
dunhill Posted March 16, 2020 Author Share Posted March 16, 2020 Thanks for your help I have completed as your instruction, but there is no improvement Without ssdt.aml, my laptop could boot but the screen stills flickering With ssdt.aml, my laptop could not boot into Sierra Please see my pictures and EFI folder EFI.zip Link to comment Share on other sites More sharing options...
Administrators Hervé Posted March 16, 2020 Administrators Share Posted March 16, 2020 You've not entirely followed the instructions I provided above. Link to comment Share on other sites More sharing options...
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