Mojave 10.14.4 beta 2 (18E184e) looks better.
For my system, if I use SMBIOS iMacPro1,1 or with the bootarg shiki-id, or copying/replacing the params from this to iMac15,1 the system freezes randomly using FCPX. Export works but with issues/glitches.
Injecting the param 'hwe420' directly into /System/Library/PrivateFrameworks/AppleGVA.framework/Versions/A/Resources/Info.plist, for my board-id (iMac15,1), the system become more stable and the export from FCPX have no glitches.
Stable configuration:
- No iGPU enabled.
- Only discrete GPU enabled, Radeon RX580.
- CPU i7 4970K.
- Netflix on Safari: OK
- iTunes DRM Streaming: OK
- FCPX: Stable
- VideoProc: Stable
- AppleGVA/Info.plist config:
Code:
<key>Mac-42FD25EABCABB274</key>
<dict>
<key>burstSize</key>
<integer>4</integer>
<key>facetimeDecode</key>
<true/>
<key>forceOfflineRenderer</key>
<true/>
<key>hwe</key>
<true/>
<key>hweBGRA</key>
<true/>
<key>hwe420<key>
<true/>
<key>ke1</key>
<true/>
<key>pp</key>
<integer>1</integer>
</dict>