Hi OM
I'm not sure what to advise 1) I barely know what I'm doing with this whole Hackintoshing; 2) because our rigs are different, I don't want to mess up any of your settings. I took a look at your EFI (ps., I hope your Serial Number in you SMBIOS is not the one you're using. It isn't smart to post your SN)
With me, I took a lot of time to figure out how to get the iGPU to coexist with the dGPU. Both are necessary for Sidecar, which it looks like is important for you too. The trick with my Z390 mobo is to
patch the frame buffers, and I was lucky that the process was already figured out for a related mobo that appears to apply to mine. I am not sure what the process is for a H270 mobo.
During the process I basically started with a bare minimum number of kexts and changes in my config.plist, and I sequentially added a component. If it didn't make a difference in performance or stability, I left it out. I kept good notes during the process, and eventually figured out a "bare minimum" set of changes to get the system off the ground. It took a lot of time, and many reboots, several resetting the CMOS/NVRAM
In the end, the most important things for me are Sidecar and sleep/wake. Everything else is just icing on the cake. This Radeon SSDT is nice, but in real world performance, I don't really notice that much of a difference. Before the Radeon Fans kext fix, I was content not running the SSDT.
Good luck!
Ted
Sadly, its not working on my build :/ wonder where the problem might be...
