hi so I recently upgrade to an Nvidia GT 730 (did an upgrade without needing a new PSU) the graphics card is detected by Mojave but no sound via the hdmi port I read Nvidia is forbidden to make web drivers past High Sierra (must be approved by apple) so how will I go about enabling sound through my HDMI (any additional info/files I'll be happy to supply)
Hey I finally got OSX kinda to work. But when I boot with all settings enabled to make HDMI work I only get 10MB VRAM, I already tried changing all the FakeID but all give the same result or make it unable to boot at all. When I don't use any settings in the config.plist and boot without WhateverGreen and Lilu it works fine over VGA with 1500 something MB VRAM. But I need to work over HDMI..
I also used another kext I saw someone else using on the 8th gen coffee lake CPU but it didn't have any effect aswel.
I included my EFI Folder as download in this post, hopefully someone knows how to solve this because I've been searching for hours without luck
Catalina seems to be a read only kext system so modifying kexts to make older hardware work doesn't seem to be possible at this point. However we have had success using Mojave kexts to get hardware to function.
For bluetooth on Broadcom WiFi cards using injectorkext and adding the Mojave bluetooth kexts to System/Library/Extensions folder seems to have solved the connectability issue. Install Mojave kexts and use kext utility to repair permissions and caches before reboot. The Zip contains the Catalina original kexts as a backup in case you want to revert.
Bluetooth kexts fix.zip
For Atheros WiFi we are using Mojave modified with High Sierra kexts. Install in System/Library/Extensions folder and use kext utility to repair.