Glitch H264 video after enabling KBL QuickSync HD 630 (Final Cut)

[iosonofigo]

Hello,
I have a Kaby Lake Hackintosh with the following parts:
- Intel i3 7100
- Gigabyte B250M-D2V
- Asus GTX 1050 2GB

Here's what I did to config.plist (also attached to this post)

ACPI
Patches
GFX0 -> IGPU
PEGP -> GFX0
HDAS -> HDEF
PEG0 -> POP2
COPR -> MATH

Fixes
FixShutdown_0004
Boot args:
-v
-disablegfxfirmware
-shikigva=12 (actually this alone is enough to enable QuickSync)

Devices:
Fake ID
IntelGFX -> 0x59128086

Add Properties

#1 (somebody is saying that this isn't needed anymore, should I remove it?)
Device: IntelGFX
Key: AAPL,GfxYTile
Value: 0AAAAA00
Value Type: DATA
Graphics
ig-platform-id: 0x59120000

Rt Variables
from SMBIOS:
ROM: 003EE1902E14
MLB: C02234603QXF16V1V
BooterConfig: 0x28
CsrActiveConfig: 0x00
SMBIOS: iMac18,3 (the one shipped with 7700K straight from Apple)

System Parameters
Inject System ID [YES]
NvidiaWeb [YES]


Here's what I have in /EFI/EFI/CLOVER/kexts/10.13:
AppleIntelE.kext
AppleALC.kext
FakePCIID.kext
FakePCIID_Intel_HD_Graphics.kext
FakeSMC.kext
IntelGraphicsFixup.kext
Lilu.kext
NvidiaGraphicsFixup.kext
Shiki.kext
USBInjectAll.kext

Here's what I have in /EFI/EFI/CLOVER/drivers64UEFI
AppleImageCodec-64.efi
AppleKeyAggregator-64.efi
AppleUITheme-64.efi
DataHubDxe-64.efi
EmuVariableUefi-64.efi
FSInject-64.efi
FirmwareVolume-64.efi
OsxAptioFix2Drv-64.efi
OsxFatBinaryDrv-64.efi
SMCHelper-64.efi
VBoxHfs-64.efi
apfs.efi

In the BIOS I enabled the integrated graphics at MAX mem, but I set PCI-E as the main (and first) one (so my 1050). Setting the IGFX as first is causing a boot loop. So right now there's just one 2K monitor plugged into the 1050 via DisplayPort.

My only concern is about Final Cut Pro. When QuickSync is disabled, the H264 export (Master File) is fine (but VERY slow, because Final Cut uses QuickSync a lot).
As soon as I enable QuickSync with the boot arg shikigva=12, the exported videos are SO glitchy, unwatchable. Same result using Compressor.
Here's a screenshot of one exported video

 

[weezul]

I am on a system with nVidia 1050ti , and an i7 6700k, and today I got hyped for getting Quick Sync set up. I got it working, both graphics cards are showing in System Properties, and Final Cut seems to render slightly faster... however I have the same problem. Any titles generated in Final Cut X export like this for me as well. For me it's only one intro card, and making it into a compound clip worked for a minute, and then that compound clip got it's own set of new glitches.... really strange.

 

[weezul]

Another update.... I went back to my old settings with no internal gfx... and the render problems stayed. I had to restore a new system image from the week before.... and only that would fix the problem. It's a shame because VLC seemed to decode x264 anad x265 much smoother with the settings enabled but Final Cut Pro was a total shitshow. Glitches everywhere, especially on titles, you could see these multicolour tracking images for moving titles and everything.... Maybe next build I will try it again