Error -12912 when exporting in h264 in FCPX

[bobby1984]

What model of CPU do you have?

I7 2700k sandy bridge

 

[Acden]

It is not iMac 19,1.

Try 14.2 for example or 13.xx.

 

[bobby1984]

It is not iMac 19,1.

Try 14.2 for example or 13.xx.

I Tried 13,1 13,2 13,3, 14,1, 14,2, 14,3, but unfortunately not helped

 

[trankilou]

To solve the issue, once Quick Sync correctly configured (search on the net how to), I have to be sure IGPU was used like this:

defaults write com.apple.AppleGVA gvaForceAMDAVCEncode -boolean no

defaults write com.apple.AppleGVA forceNV -boolean yes

defaults write com.apple.AppleGVA gvaForceAMDKE -boolean no

 

[Acden]

I Tried 13,1 13,2 13,3, 14,1, 14,2, 14,3, but unfortunately not helped

Not helped to what? You need to reinstall FCPX, do a CLEAN install!

 

[trankilou]

I Tried 13,1 13,2 13,3, 14,1, 14,2, 14,3, but unfortunately not helped

if you wanna choose you vega64 instead of IGPU you have to select macpro1,1 in SMBIOS and write down this in terminal
defaults write com.apple.AppleGVA gvaForceAMDAVCEncode -boolean yes

defaults write com.apple.AppleGVA forceNV -boolean no

defaults write com.apple.AppleGVA gvaForceAMDKE -boolean yes

 

[Acden]

if you wanna choose you vega64 instead of IGPU you have to select macpro1,1 in SMBIOS and write down this in terminal
defaults write com.apple.AppleGVA gvaForceAMDAVCEncode -boolean yes

defaults write com.apple.AppleGVA forceNV -boolean no

defaults write com.apple.AppleGVA gvaForceAMDKE -boolean yes

Can you explain what these does?

I have 18,3 and fully working Vega56 car without these strings...

 

[Acden]

if you wanna choose you vega64 instead of IGPU you have to select macpro1,1 in SMBIOS

Is this a mistake? Should be iMacPro1,1?

 

[jaymonkey]

Is this a mistake? Should be iMacPro1,1?

@Acden,

The iMacPro1,1 SMBIOS is for Workstation Class (XEON) CPU's that have no IGPU.

You have 7th Gen Kaby Lake Desktop Class CPU so use you should be using iMac18,X SMBIOS with your IGPU configured as Headless, your Vega 56 should work just fine with that configuration.

Cheers
Jay