Error -12912 when exporting in h264 in FCPX

[Petaire]

Hello,

On my z170x Gaming 5 / RX580 / 3,41 GHz Intel Core i7, I get this error when I'm trying to export in H264. I'm on High Sierra 10.13.4

I'm pretty sure it's to Quick Sync, but I have no idea how to correct it!

My CG is connected with one displayport, to only one screen for the moment. Everything else, including USB, is working fine !

I'm using Shiki.kext, Lilu.kext and whatevergreen.kext.

 

[tabarus]

I am curious , do you use a iMac14,2 system definition?

If yes probably this is related as well:
https://www.tonymacx86.com/threads/...recording-broken-since-10-13-4-17e199.249266/

 

[Petaire]

Nope, I'm using 18,1 ! Do you think that could work ?

Thanks for you time, I appreciate it !

 

[tabarus]

I dont know, I used 14,2 and since the last update 10.13.4 I no longer could do screen recordings.
Switching to iMac19,1 fixed it for me, I found that fix here :
see: https://www.tonymacx86.com/threads/high-sierra-rx-vega-final-cut-h-264-fix.233067/

 

[Petaire]

Mmm I tried but I've only modified the product name and the bios version… Is that supposed to be enough ?

edit : Hurray ! It seems to have worked !

 

[tabarus]

edit : Hurray ! It seems to have worked !

Yeah !

 

[vz7]

May I ask how did you change to 19,1? I don't seem to have the option

 

[shuhung]

iMac19,1 Board-ID does not covered by AppleGVA therefore FCPX share as H264 work, but H264 and HEVC GVA decoder will not work, no HW acceleration, use any SMBIOS Board-ID not covered by AppleGVA should get same result, like MacPro5,1.

Issue should caused by H264 encoder (part of IOGVACodec) incompatible with some apps, temporary workaround is use a dummy kext to disable IOGVACodec but keep H264/HEVC decoder and HEVC encoder support functional.

 

[tabarus]

temporary workaround is use a dummy kext to disable IOGVACodec but keep H264/HEVC decoder and HEVC encoder support functional.

and that will enable hardware encoding of h264 ?
I read that enabling teh iGPU will enable hardware encoding. (not tested)

 

[shuhung]

and that will enable hardware encoding of h264 ?

No, just opposite, I use dummy kext to disable AMD H264 encoder, decoder function remain on, HEVC encoder/decoder still on.
When IOGVACodec is enabled, AMD H264 encoder will be on but recently incompatible with FCPX.

I read that enabling teh iGPU will enable hardware encoding.

Yes, provided by IQSV, enable IQSV will auto disable AMD GVA H264/HEVC support.