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

[macnb]

Hi guys,
I hope someone can help me
First of all, my components are :

Asus Sabertooth P67
Intel i5 2500k
Ati Radeon RX580 Nitro+
SMBios : iMacPro1,1

Everything works perfectly on Monteray and BigSur, except h264 rendering ... VideoProc (everything is green and supported) , Davinci resolve, FCPX, Mediaencoder... every single program freeze and then restart the computerwhen try to render anything in h264. H265 working perfectly.
I tried to change smbios, tried iMacPro1,1 , MacPro6,1 and 7,1, same thing.
Tried several bootflags in bootloader, and nothingworks
Just to say, OPencore is on the latest version, as all the kexts.

I hope someone have some idea how to resolve this.

Thanks in advance!

disable IGPU in the bios

 

[jrhaim]

disable IGPU in the bios

i5 2500k has no iGPU, and there is no iGPU in Asus Sabertooth P67.

 

[Feartech]

i5 2500k has no iGPU, and there is no iGPU in Asus Sabertooth P67.

Intel HD3000:

Intel® Core™ i5-2500K Processor (6M Cache, up to 3.70 GHz) - Product Specifications | Intel

Intel® Core™ i5-2500K Processor (6M Cache, up to 3.70 GHz) quick reference with specifications, features, and technologies.

www.intel.com

 

[jrhaim]

Intel HD3000:

Intel® Core™ i5-2500K Processor (6M Cache, up to 3.70 GHz) - Product Specifications | Intel

Intel® Core™ i5-2500K Processor (6M Cache, up to 3.70 GHz) quick reference with specifications, features, and technologies.

www.intel.com

WTF? hahah, how can i disable it if i do not see it in the BIOS ?
Thanks in advance for help!

 

[Feartech]

WTF? hahah, how can i disable it if i do not see it in the BIOS ?
Thanks in advance for help!

read the manual

 

[jrhaim]

There is nothing in the manual, i checked... only mention for multi gpu (crossfire and SLI)
I checked again in the BIOS, nothing about iGPU. Can i put some flag in boot for disabling igpu that way?

 

[Feartech]

There is nothing in the manual, i checked... only mention for multi gpu (crossfire and SLI)
I checked again in the BIOS, nothing about iGPU. Can i put some flag in boot for disabling igpu that way?

-wegnoigpu

 

[jrhaim]

I will try. Thank you very much

 

[UtterDisbelief]

I will try. Thank you very much

Section 3.5.2 of the ASUS User Manual in English, shows you how to choose the GPU.

 

[jrhaim]

Section 3.5.2 of the ASUS User Manual in English, shows you how to choose the GPU.

I saw that but there is nothing about iGPU, PEG (PCi Express Graphic) and PCI ...
I tried both variants, same thing...