Radeon RX 4XX/5XX standalone system, AMDRadeonX4250.kext (GVA support H264) does not support HEVC HW

[aforty]

What i know is that it is possible to enable RX 580 hardware decoding and encoding, but it is very unstable which causes system random freeze. In a word, RX 5xx is useless on that purpose.

Ah, I think I have experienced these system freezes... I have Netflix in safari finally working but I can't export anything in iMovie/FCP.

/edit This is still on 10.14.3, I just caught up with this thread. Looks like 10.14.4 solves a lot of these issues, not sure I want to install a beta though. Is there a way to use some of the 10.14.4 files in 10.14.3 to make it work?

 

[familygw]

Hi folks, I've installed the beta 1 (Mojave 10.14.4 beta 1) and I confirm that VideoProc no longer freezing.
iTunes DRM streaming and Netflix on Safari works like a charm.

For my system, wasn't necessary to add any bootarg. I'm using a iMac15,1.

I'm testing now how is export in FCPX.

 

[shuhung]

For my system, wasn't necessary to add any bootarg. I'm using a iMac15,1.

I'm testing now how is export in FCPX.

SMBIOS iMac15,1 does not support hwe420, export H264 will not work.

 

[familygw]

SMBIOS iMac15,1 does not support hwe420, export H264 will not work.

Yes, you're right. But using anoother sysdef Netflix stop working on Safari. So, I've added the param (key and value) into the AppleGVA.framework info.plist, until WEG include another way to inject GVA features.

Until now, everything works fine, without freezings.

 

[shuhung]

So, I've added the param (key and value) into the AppleGVA.framework info.plist, until WEG include another way to inject GVA features.

Add WEG boot flag shikigva=32 and shiki-id=7BA5B2D9E42DDD94.

See @justinhe post #653

 

[darthsian]

Add WEG boot flag shikigva=32 and shiki-id=7BA5B2D9E42DDD94.

See @justinhe post #653

Hello, if you add boot flags like this, Netflix will stop working on Safari.

 

[shuhung]

Hello, if you add boot flags like this, Netflix will stop working on Safari.

I use SMBIOS iMacPro1,1, does not have any issue, tested above boot flags fix H264 issue but not test Netfix on Safari, direct mod AppleGVA info.plist should work.

 

[familygw]

Add WEG boot flag shikigva=32 and shiki-id=7BA5B2D9E42DDD94.

See @justinhe post #653

Yes, but Netflix stop working. I’m analyzing the shiki part of code to see if there is a value for shikigva which enables hwe420.

Thanks!

 

[shuhung]

Yes, but Netflix stop working. I’m analyzing the shiki part of code to see if there is a value for shikigva which enables hwe420.

Thanks!

Seems to be caused by AGDP, check ioreg see whether AGDP is diabled by WEG or not, if not, try add agdpmod=vit9696.

 

[familygw]

Seems to be caused by AGDP, check ioreg see whether AGDP is diabled by WEG or not, if not, try add agdpmod=vit9696.

No, same result.