in this post page one find keyword "Going the Extra Mile"
the FCPX est also discuss
check where an how to set plateform-id ( clover devices -> properties you need to insert first in...
plz have you set plateform-id for imac19,1 to manage igpu ?
according to your screenshoots, it may be not
see for Graphicsif ig-platform-id is correct. (ie:0x3E980003 to confirm)
i have the same CM. If you want video R580 is the base.
you need to choose a AMD radeon vido for next mac os
a good application to have is GO4 (list aall application for 32/64 bits / BS compatibility)
if you use 32 bit, the best is mojave. and vega 64, radeon VII are compatible
T2 is not present inside iMac 2019.
So for handle H.265 video transcoding, iGPU is needed for accelerate.
important would be the next design for new iMac (mac Intel or not).
if Apple does not support XE graphics, on new board computer, all mac Intel will be obsolete very shorty, but could be...
you need to know the correct value for a good use:
1-in info, hackintool have to provide a select intel generation (coffe Lake) and correct plateform ID ( not 0x3EA50009 but 0x3E9B0007)
2-decoded information must in selected buffer. if hackintool is up to date, there a trouble