HD530 AppleIntelSKLGraphicsFramebuffer 4K DP port Missing

[mysqto]

Hi
Recently I'am working on a customMac (High Sierra 1013.1) build with Asus H110S2(which has one DP & one HDMI port) and Intel Core i7-6700T (on board HD530 Desktop GPU)， everything works nice with Lilu.kext and IntelGraphicsFixup.kext using the -lilubeta -igfxbeta boot args except 4K@60Hz monitor connection with DP. When I connect to my Dell U2718Q monitor using DP, got direct kernel panic and reboot. There is 3 AppleIntelFramebuffer in IORegistryExplorer, Fremebuffer@0, Fremebuffer@1, Fremebuffer@2 with port 0x0, 0x05, 0x06. Port 0x05 is connected to my monitor with HDMI (connector-type 00 08 00 00). port 0x6's connector-type is also 00 08 00 00. There is no port with connector-type 00 04 00 00(DP), every time I connecting a monitor(4k or not 4k) , just got no dp signal and a reboot of the machine. I know somehow I can use a clover kext patch to fix this, maybe port_0x0_HDM2DP or port_0x6HDM2DP, since I'm not familiar with this, How can I write the Kext patcher to get the missing DP port back?

Attached is my config.plist and ioreg dump with IORegistryExplorer.


Thanks.

 

[blissme]

Did you solve this issue?

 

[MrDelook]

I have similar issue 2 x HDMI and one DP but DP is with port type HDMI. Did you managed to resolve the problem?

 

[wmzhelin]

Did you managed to resolve the problem?I have the same question.I have a 4k monitor and a 21:9 2K ultrawide monitor.What should i do that make two monintors in hidpi mode.
two hdmi and one dvi