Download Hackintool. It's a very well done utility that has a number of features and uses - thus, the Swiss Army Knife icon. Once you have it, open it and click on the "Extensions" tab at the top. Then click on the "Refresh" circle at the bottom to see which of your kexts are loaded and if they need an update.I'm just making sure, I don't need to update any kexts or anything?
BTW Thanks for helping!
Didn't work! Cannot boot after update because it cannot initialize graphics. So, screen goes to sleep with no signal although it has booted underneath. Tried all video outs - HDMI, DVI and DP
Z370m i5-9600k iGPU (UHD 630). Works perfectly fine with 10.15.4 (and 10.14.x) with either MacMini 8.1 or iMac 19,2 SMBIOS (ig-platform-id 0x3E9B007) Also tried MacBookPro 15,2. Something has changed in 10.15.5 video driver for Ninth Gen iGPU handling. May require a fix in Clover or WEG. Using latest available Clover, WEG, Lilu and ALC.
To remove any issues with my installation tried it with just booting a USB 10.15.5 installer. Same issue. Signal to display goes dead after the VGA boot phase while the installer has booted on the machine.
Partial Fix: Looks like the port handling for 0x3E9B007 is broken in 10.15.5 for Coffee Lake iGPU (at least the 9th generation). Choosing 0x3E9B000 instead resulted in the HDMI port working at least but not the DP or DVI ports. The other ports don't even light up in Hackintool when connected. So framebuffer patching by trial and error is required to make all video ports work. The latter would be board dependent.