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

[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.

 

[shuhung]

No, same result.

Seems to be no relevant to AGDP, use iMacPro1,1 or edit AppleGVA info.plist.

AGDP enabled

AGDP disabled

 

[darthsian]

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.

When i add hwe420 parameter to AppleGVA.framework info.plist (Im using SMBIOS iMac15,1 as you) everything works, but exported h264 video files from FinalCut have many artifacts, if i use shikigva=32 and shiki-id=7BA5B2D9E42DDD94, its ok. So adding only hwe420 parameter is not sufficient for good h264 encoding.