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

[Wolax]

Sound like all you did is disabling hardware rendering since MacPro5,1 can only do software rendering. Hardly a solution unfortunately.

 

[uran0s]

Need help please.

Hi have mobo Z97X UDH5 i4790K (Intel HD4600)+ AMD RX 570 with this settings:

SMBIOS 15,1

clover:

boot arguments: -rad4200 shikigva=4
devices: fake ID ATI: 0x067DF1002 and IGFX 0x04128086
graphics: inject intel and 0x0d220003 ig-plataform

kernel kext patches:
Name
AMDRadeonX4000
Comment
Rename IOGVACodec to IOGVACodex
Find
494F4756 41436F64 6563
Replace
494F4756 41436F64 6578

Lilu + Whatevergreen last versions.

now. no longer stuck in some apple applications like photos for ex.
how disable the acceleration by SW VCPHEVC, any suggestions?

regards[/QUOTE]

 

[Zirra]

Sound like all you did is disabling hardware rendering since MacPro5,1 can only do software rendering. Hardly a solution unfortunately.

Actually you are correct. Initially I thought the issue was resolved because of how my system wasn't crashing while rendering using MacPro5,1, but it turns out there isn't any hardware acceleration, just software.

 

[nagelelu]

AMDEllesmereGraphicsAccelerator (RX470/480/570/580) native support GVA HEVC, only need SMBIOS supported by AppleGVA, GPU must attached to device GFX0. May need IOGVACodec workaround for Apps compatibility.

Its no longer supported on macos 10.14 release, Is there any resource to enable hevc and h264 hard encoding without iGPU and my card is RX470.

 

[Michelinu]

This is what I'm currently using on MacOS Mojave:
- latest Lilu + WhatEverGreen kexts (I also have AppleALC kext for DP audio)
- iGPU enabled in the BIOS - PCIE1 slot set as Primary

In Clover I don't need anymore anything.. While before I needed Inject Intel + an ig-platform-id, now I don't need both they nor any patch. Everything works perfectly

BruceX 5K Test takes about 17 s and exporting HEVC videos from Photo.app is very fast thanks to hardware acceleration (AppleGVAHEVCDecoder).

 

[mecrip]

Hello,

I'm using a I7-2600 with a gigabyte z68ap-d3 and a radeon rx580. IGPU disabled since sandy bridge graphics is not supported.
Under high sierra i experienced the freeze bug with DumpGPURestart error when trying to edit videos in photo app and I solved with the patch:

kernel kext patches:
Name
AMDRadeonX4000
Comment
Rename IOGVACodec to IOGVACodex
Find
494F4756 41436F64 6563
Replace
494F4756 41436F64 6578

Now i've upgraded to mojave, the issue is back and this patch seems no longer effective.

I backed up to the SwapID.ext solution for now, and it seems ok for now even if the GPU is not fully used.

I'm interested in any other potential solution to this issue.

 

[Zgens]

Hello,

I'm using a I7-2600 with a gigabyte z68ap-d3 and a radeon rx580. IGPU disabled since sandy bridge graphics is not supported.
Under high sierra i experienced the freeze bug with DumpGPURestart error when trying to edit videos in photo app and I solved with the patch:

kernel kext patches:
Name
AMDRadeonX4000
Comment
Rename IOGVACodec to IOGVACodex
Find
494F4756 41436F64 6563
Replace
494F4756 41436F64 6578

Now i've upgraded to mojave, the issue is back and this patch seems no longer effective.

I backed up to the SwapID.ext solution for now, and it seems ok for now even if the GPU is not fully used.

I'm interested in any other potential solution to this issue.

You made my day! I was looking for a solution for photos app and video encoding since 7days. And you arrived with this kext patch, working perfectly for me. No H.264 but I don't care, I prefer using HEVC now.
Thank you!

 

[Zgens]

Hello,

I'm using a I7-2600 with a gigabyte z68ap-d3 and a radeon rx580. IGPU disabled since sandy bridge graphics is not supported.
Under high sierra i experienced the freeze bug with DumpGPURestart error when trying to edit videos in photo app and I solved with the patch:

kernel kext patches:
Name
AMDRadeonX4000
Comment
Rename IOGVACodec to IOGVACodex
Find
494F4756 41436F64 6563
Replace
494F4756 41436F64 6578

Now i've upgraded to mojave, the issue is back and this patch seems no longer effective.

I backed up to the SwapID.ext solution for now, and it seems ok for now even if the GPU is not fully used.

I'm interested in any other potential solution to this issue.

But I think my hapiness will be short, cause now I plan to upgrade to Mojave...
What is your solution SwapID.ext?

 

[Balaise]

You made my day! I was looking for a solution for photos app and video encoding since 7days. And you arrived with this kext patch, working perfectly for me. No H.264 but I don't care, I prefer using HEVC now.
Thank you!
View attachment 353317

Hi Zgens,

what is the software of the screenshot?

 

[Zgens]

Hi Zgens,

what is the software of the screenshot?

Hi. It's MacX video converter.
You can find it here
https://www.macxdvd.com/landing/mac...tm_source=macg&utm_medium=p&utm_campaign=1803