On the intel HD 4600, I have two monitors (HDMI / DVI). I upgraded to 10.15.4 successfully with only 1 monitor. However when starting with 2 monitors happens KP, but if you start with 1 monitor and then connect the other one works perfectly. I've already created a patch with Hackintool to no avail. Strange that the previous version 10.15.3 did not have this problem.
Processor: Intel Core i5 4690
Graphics: Intel HD Graphics 4600
Motherboard: Gigabyte Ga-q87m-d3ph
Audio: Realtek ALC887
Network: Intel (R) Ethernet Connection I217-LM
log dual monitor.zip