New DRM enabling method for systems with AMD GPU

[flo1]

From first beta of 10.15.4 drm doesn't work for netflix(black screen) and for okko in Safari
With 10.15.3 all works

i7-9700k
5700XT
iMacPro1,1, and some iMac's SMBios
latest WhateverGreen and Lilu
and shikigva didn't help

 

[theredmc]

It works for me
rx 580
shikigva=80 and -radnogva

 

[feisalm]

It should be noted that those who are using iMacPro1,1 system definition do not need the "shikigva=16" boot argument. Apple TV, Amazon on Safari, Netflix on Safari, etc should all work just as it always has.

I can confirm that is true for my system.

 

[feisalm]

I can confirm that is true for my system.

I should have been more clearer.
I am using iMacpro1,1 and latest versions of WG, lilu etc. and OpenCore 0.56. I upgraded last week. Since then Netflix, which used to crash on Safari, runs smoothly and I get full HD (1920x1080).
I don't have AppleTV subscription or Amazon Prime but the previews work on AppleTV.

 

[Xanny]

In my case today was experimenting to sort out some problems with the new clover version (btw it's going worse every release), i removed igpu from bios and bingo, drm working, Netflix & Amazon Prime Video with Safari.
My config is:
iMac 18,3 SMBios
Latest WhateverGreen & Lilu
agpmod=pikera -shikigva=80

The weird part is Hackintool that says no GVA acceleration but it's working correctly.

 

[real3x]

A silly and desperate test that result in a .... success / but weird story, this is the story :

/ old sandy bridge 2600k no igpu/RX 580+WEG/Catalina

I was on :
- imac 16,1 smbios with shikigva=16 shiki-id=Mac-7BA5B2D9E42DDD94 WEG 1.3.6/osx 10.15.3 and have h264/265 video toolbox enable but no DRM content (netflix/atv)

Later :
- imac 16,1 but shikigva=80 shiki-id=Mac-7BA5B2D9E42DDD94 WEG 1.3.8/osx 10.15.4 and lost h264/265 video toolbox but DRM content work (netflix/atv)

So i decide to switch on imacpro :
- imacpro 1,1 only agdpmod=vit9696 boot argument, WEG 1.3.8/osx 10.15.4 - h264/265 video toolbox enable, DRM content work (netflix/atv) but i suffer from the red/green video screen, i just have sound on DRM video. And some times this affect some video on website in safari, it seems strangely totally random, it has even happen on a video inside imessage.

Then i read a lot of thing that i tried but always same result, still red/green video ...

So i decide to try to add some shikigva=XX, i know that's a nonsense, but hey, when there were nothing more to try why not but same result, still red/green video.

And after a week, this morning i tried a more nonsense thing : add shikigva=80 shiki-id=Mac-7BA5B2D9E42DDD94 as boot argument ... and BOOM red/green screen disappear and i have netflix and ATV working with ofc videotoolbox enable.

I have absolutely no idea why it's working, im on imacpro so why add the same mac model with shiki-id=Mac-7BA5B2D9E42DDD94 make it work ? ...

 

[jmmc]

Netflix, ATV+, Disney+ etc working but Amazon Prime Video, HBO refresh to an error page.

This is my current configuration:
iMac18,3 with headless configuration (0x59120003).
i5-7400
RX580
shikigva=80

I tried with iMacPro1,1 with IGPU disabled from BIOS and all works but I lose Apple Watch unlock and Sidecar and I reverted to iMac18,3 with enabled IGPU and headless configuration.

Anyone with the same problem or has a fix?

Thank you in advance!

 

[jaymonkey]

I tried with iMacPro1,1 with IGPU disabled from BIOS and all works but I lost Apple Watch unlock and Sidecar.

@jmmc,

You will not be able to get SideCar working when using the iMacPro 1,1 SMBIOS as a real iMac Pro uses a T2 chip for the SideCar encode process. If you need SideCar working then you must use a regular iMac SMBIOS with the IGPU enabled and configured as headless.

Cheers
Jay

 

[jmmc]

@jmmc,

You will not be able to get SideCar working when using the iMacPro 1,1 SMBIOS as a real iMac Pro uses a T2 chip for the SideCar encode process. If you need SideCar working then you must use a regular iMac SMBIOS with the IGPU enabled and configured as headless.

Cheers
Jay

Yes, I know but I want to know if it's possible to fix Prime Video with iMac18,3. Currently I'm using iMac18,3.

Thanks!

 

[jaymonkey]

Yes, I know but I want to know if it's possible to fix Prime Video with iMac18,3. Currently I'm using iMac18,3.

@jmmc,

I have read many more positive DRM success stories in the last few weeks when using the very latest Lilu + WEG with a standard iMac SMBIOS and the boot argument shikigva=80 so progress has been made since the revamped shiki code was introduced in WEG .... however there are still known issues with certain Polaris based AMD GPU's.

On a personal note i can confirm that with the latest release of Lilu (V1.4.3) and WEG (V1.3.8) Netflix has started working in Safari on my main system (iMac15,1 with shikigva=80) which up until now has not worked, however Amazon prime video still causes an error (although it does now play a few seconds before the error) so I can see that with each release of Lilu + WEG progress is being made by the devs.

If it does not work for you then you'll have to wait for the next release of Lilu + WEG and hope that the devs have made a bit more progress.

Cheers
Jay