Please help: 8700k UHD 630 does not work with two 4k monitors

[dsrtegle]

I just got two Dell U2718Q 4k monitors and try to use them with my 8700k hackintosh, via DP + HDMI. According to UHD 630 specs, it should support 4k@60Hz with DP and 4k@30Hz with HDMI, and it does work under Windows 10 but not with hackintosh. If macOS starts with the DP monitor alone, 4k is fine, and then I turn on HDMI monitor, the HDMI monitor only has 1080p. If booting with HDMI alone, the same 1080p only. If I cold boot the two monitors together, the DP monitor displays a very dark login screen and mouse click has no effect. I also tried a discrete Nvidia card and it outputs two 4k normally, so it looks something is not right with Intel UHD 630 driver. Someone knows how to fix? Thank you.

My hackintosh motherboard is Asus Z370-E. Clover is r4411. In config.list, Devices -> IntelGFX = 0x59128086, Graphics -> ig-platform-id = 0x59120000, and Inject Intel is checked. Boot flags checked are: nvdisable=1, -disablegfxfirmware, and custom flag shikigva=1. System definition is iMac 18,3.

/Library/Extension has the latest version of these kexts:

FakePCIID.kext/
FakePCIID_Intel_HDMI_Audio.kext/
FakePCIID_Intel_HD_Graphics.kext/
FakeSMC.kext/
FakeSMC_ACPISensors.kext/
FakeSMC_CPUSensors.kext/
FakeSMC_GPUSensors.kext/
FakeSMC_LPCSensors.kext/
IntelGraphicsFixup.kext/
IntelMausiEthernet.kext/
Lilu.kext/
Shiki.kext/

 

[jodkiam]

do u solved？