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

[xh116]

Try rebuild dyld cache then export terminal text, test again, pls upload your ioreg file.

sudo update_dyld_shared_cache -force

thanks in advance！

 

[shuhung]

thanks in advance！

Dyld cache updated successfully, terminal output text not same as mine, see attached file, not sure which one is correct, should not cause problem.

Ioreg seems to be normal except PEG1@1,1, rather weird, airport attached to PEG1 GFX0, try move airport to another PCIE slot.

 

[xh116]

Dyld cache updated successfully, terminal output text not same as mine, see attached file, not sure which one is correct, should not cause problem.

Ioreg seems to be normal except PEG1@1,1, rather weird, airport attached to PEG1 GFX0, try move airport to another PCIE slot.
View attachment 395933

The wireless card insert into second PCIE slot.
But I just given up decoding the HEVC and back to imac 14.2.
Also ordered a Mac mini 2018.
Wish you guys good hack !

 

[glofter1]

I got active my MSI RX 460-single fan ( Patch to RX560 signle fan) on old system Asrock P67 fatality / i5 2500K ( 5.2-OC ) 12Ram.. onboard card are not possible to enable on this MB, and actually is HD3000 with is not support Mojave.
So I use SMBIOS 14.2 witch shikigva=32 , shiki-id=Mac-7BA5B2D9E42DDD94 and dummy144.kext
and system work great.. no crash no restart.. H264 and HVEC also work.
IOReg detect pci-aspm-default 0x0 without any kext to patch. I use 10.14.4 and all kext are in Clover folder. / L/E are empty.
System boot legacy.. If I try UEFI has boot, but not any time...

 

[xuyan74]

Hi，shuhung
dummy kext failed active hevc accelerate after update to10.14.5 beta 1

 

[j1979]

Confirm! After upgrading to 10.14.5 (18F96h) does not work hevc and h.264 dummy141.kext. What to do?

 

[shuhung]

Hi，shuhung
dummy kext failed active hevc accelerate after update to10.14.5 beta 1

On 10.14.5 beta1, new properties are added to AMDRadeonX4000, RX4XX/5XX IOGVA support is fully enabled and native supported, no dummy kext is required.

Issue seems to be AppleGVA mismatch with AMDRadeonX4000, no fix yet, waiting for next beta release.

 

[mattystonnie]

Playing a 4k video with QuickTime, which one is better, 1 or 2? In both the cpu usage is low, IGPU enabled.

 

[zipb]

I've updated my test SSD to 10.14.4, mainly to see if I can get 10-bit HEVC decoded by hardware. What exactly do I have to add/change? I have a headerless iGPU (so quicksync works) but hardware decoding 10-bit HEVC doesn't work.
Also, my system is rock steady now, so if decoding changes this I will not even try.

 

[themacmeister]

I have Coffee Lake + RX 580. I changed SMBIOS to iMacPro1,1 and installed dummy141.kext to /EFI/Clover/kexts/Other/

I have DGPU accelerated 10-bit HEVC decoding, using VLC Media Player, it barely shows anything under Activity Monitor...

If you cannot use the SMBIOS for any reason, you can try the boot flags:

"dummy141.kext, "shikigva=32" and "shiki-id=Mac-7BA5B2D9E42DDD94"

(without the quotes)