GPU Device Properties Generator

[Cyberdevs]

Thanks,

Can you please disable agdpmod in your setting and see if that changes the boot delay?

[verdazil]

5 minutes ago, Cyberdevs said:

Can you please disable agdpmod in your setting and see if that changes the boot delay?

The boot delay is gone. So, now I have slightly better performance at the same temperature, without any negative effects.

[Cyberdevs]

Thanks for the feedback 🙂

[Anto65]

13 hours ago, Irish_Man said:

Amazing app from an amazing guy.

i tested it and it’s working. I was getting a black screen, at least i thought i was. 
The thing is, it takes a bit longer to get to the lock screen. 

I got the black screen and before i rebooted i went to get me a beer. When i came back the lock screen showed up.

@Anto65, have you tried to wait a bit? Maybe you have the same “issue?”

 

After consuming the few beers I had in the fridge, while waiting for the screen to appear, I went to bed last night half drunk. 😅

 

This morning I tried using the Cyb FB again here 

 

https://www.insanelymac.com/forum/topic/361692-gpu-device-properties-generator/#elControls_2840820_menu

 

( However, replacing AAPL, ig-platform-id, and device-id with my own 07009B3E - 983E0000 )

 

Both in Metal and OpenCL, the GeekBench results are superior 🤙

 

Spoiler

 

 

 

 

 

I'll keep it up for a bit, see what happens, no changes in temperatures... for now

 

Edited September 19, 2025 by Anto65

[Cyberdevs]

@Anto65

I’m still working on the Intel part but if I knew you were testing the app when you are sober I could have told you that’s not gonna work! 😂

 

but jokes aside it will be ready in few days but thanks for the vote of the confidence I will keep you posted on the updates on Intel GPUs

 

@eSaF

That’s the best way to make sure these device properties are working properly and thanks for your time and testing the settings thoroughly 🙂

If this project proves to be effective and useful I will continue to complete it to a usable state. 
 

Thanks for testing the app guys!

 

These settings can be used with WEG asl well as independently.

 

[JorgeMax]

Here I had black screen even with the WEG and boot-args “agpdmod=pikera”. I did a test by disabling the “agdpmod” key within the GPU properties with the NVRAM boot-args and WEG allowed to load. It gave video signal. 
I would like to know if it is possible to have the “IOFBneedsRefresh” key generated in the GPU properties. This key has to do with the boot-logo stage of the apple, that black screen between the first and second stage of the logo. He always stays active, he wanted to disable that key. 
Nice work.

[Cyberdevs]

@JorgeMax

what is your GPU?

I need to check the property more to see how to implement it in the app? Do you have a reference to explain it more?

[JorgeMax]

24 minutes ago, Cyberdevs said:

@JorgeMax

what is your GPU?

I need to check the property more to see how to implement it in the app? Do you have a reference to explain it more?

Use the RX 6600 with DP connection. I've tried to activate it for Clover, but to no avail. I use WEG + agdpmod=Pikera and with nothing device properties.

[BALDY_MAN]

9 hours ago, Cyberdevs said:

Hi, thanks, it's a work in progress and it's far from being a complete project. I just had the idea and started to play with this project.

You just need to select one GPU to generate the config, based on the screenshot you've selected all the GPUs, when you click a GPU in the list it will be selected for generating the config. click Clear All button, select your RX 6950 GPU and generate the config. it will generate the device properties in a new config file, you can use the same settings for your second GPU but the device path needs to be edited manually. I didn't add the function for dual GPUs to the app.

 

Hi

If I understand your question the app will generate the device properties based on the selected GPU then it add's the to the config.plist based on the device path. you can either save it in a new config or add them to your existing config this part is the obvious part if I get your question right.
About the PP,PP_WorkLoadPolicyMask && PP_PhmSoftPowerPlayTable I'm not sure what you mean exactly. Can you please explain a bit more or attach the config generated for your system so I can take a look?

 

It doesn't hurt to have it enabled, you can remove it if your GPU doesn't require it.

im  not knocking the app. I just thought having agdpmod=pikera in the boot-args was an oversight . best regards baldy

[Cyberdevs]

1 hour ago, BALDY_MAN said:

im  not knocking the app. I just thought having agdpmod=pikera in the boot-args was an oversight . best regards baldy

It's ok, I appreciate your input and I can use it that's what's gonna make the app better over time.

 

1 hour ago, eSaF said:

Tests done, the RX580 feels right at home with this app.

Very pleased with the outcome, now I don't have to swop out my Mac Model 20,20 EFI when doing installations or updates.

 

At this early stage it can only get better.

@Cyberdevs Well done Bro, you're definitely on a roll. 

Amazing news, so I will continue to work on the app to make it better.

 

 

3 hours ago, JorgeMax said:

Use the RX 6600 with DP connection. I've tried to activate it for Clover, but to no avail. I use WEG + agdpmod=Pikera and with nothing device properties.

That's unfortunate, it should work, it worked for @verdazil with the same GPU, I wonder why it doesn't work for you.

 

[Cyberdevs]

New version v0.2 uploaded to the first post, let me know how it works

[Irish_Man]

Just tried v0.2, lot more info added. 

I still can't get rid of that black screen delay, not sure why.

Fresh install or upgrade from Sequoia, same result.

.plist attached (2 entries that I usually use are commented out. I use them with WEG and agdpmod=pikera and -wegnoigpu)

 

config.plist

[Cyberdevs]

2 minutes ago, Irish_Man said:

Just tried v0.2, lot more info added. 

I still can't get rid of that black screen delay, not sure why.

Fresh install or upgrade from Sequoia, same result.

.plist attached (2 entries that I usually use are commented out. I use them with WEG and agdpmod=pikera and -wegnoigpu)

How long is the black screen delay? on my RX 580 it's not that long 2 to 5 seconds, haven't tested the RX 6800 XT yet, I need to reboot the system but have a lot going on right now

 

[Anto65]

I'm on my third beer... the screen is still black here 🤣 , with the app-provided ID 0x3E9B

 

... It works great with 0X3E98

[Irish_Man]

19 minutes ago, Cyberdevs said:

How long is the black screen delay? on my RX 580 it's not that long 2 to 5 seconds, haven't tested the RX 6800 XT yet, I need to reboot the system but have a lot going on right now

 

It takes about 20-30 seconds

[Cyberdevs]

Just now, Irish_Man said:

It takes about 20-30 seconds

That's way too long.

[Irish_Man]

6 minutes ago, Cyberdevs said:

That's way too long.

Yes it is. I've tried to play with all kind of things but no luck.

[naiclub]

Hello, I've tried this too.
Your new file won't boot into the machine. It's stuck on the "AppleKeyStore" file. The previous one, which you haven't made an app for, booted perfectly without any boot arguments.

Spoiler

 

Edited September 20, 2025 by naiclub

[Cyberdevs]

Thanks for the feedback @naiclub

I guess the new device properties are faulty.

I'm gonna remove the v0.2 for now until I fix it.

[Irish_Man]

2 hours ago, Cyberdevs said:

That's way too long.

Ok, I found the culprit for delay.

It's  "-ctrsmt boot arg. 

I dont know why but if I use the app DP configuration it causes the delay. 

If I remove the boot-arg, no delays but I do need that arg for my cpu.

[Cyberdevs]

On 9/21/2025 at 2:23 AM, Irish_Man said:

Ok, I found the culprit for delay.

It's  "-ctrsmt boot arg. 

I dont know why but if I use the app DP configuration it causes the delay. 

If I remove the boot-arg, no delays but I do need that arg for my cpu.

I’ve found the root cause for the long pause or delay in the boot process. I’m working on the new version and I guess it’ll be ready for release soon.

[Cyberdevs]

@verdazil

You were right on the money with the device paths, the long pause between two stages was mostly because of the incorrect device path and the agdpmod entry. I removed agdpmod and fixed the device path for discreet GPUs, Thanks for that.

The new version should work better now (fingers crossed). 

 

To all:

please test this version and let me know how it works.

 

I've tested this version on an AMD RX 580 and RX 6800 XT

GPU Device Properties.zip

 

[jlrycm]

On 9/19/2025 at 9:41 AM, JorgeMax said:

Here I had black screen even with the WEG and boot-args “agpdmod=pikera”. I did a test by disabling the “agdpmod” key within the GPU properties with the NVRAM boot-args and WEG allowed to load. It gave video signal. 
I would like to know if it is possible to have the “IOFBneedsRefresh” key generated in the GPU properties. This key has to do with the boot-logo stage of the apple, that black screen between the first and second stage of the logo. He always stays active, he wanted to disable that key. 
Nice work.

@JorgeMax @Cyberdevs what’s the real purpose of this “IOFBneedsRefresh” property? Is it safe to keep it permanently in AMD dGPUs like the RX 6600?

[fabiosun]

Hi @Cyberdevs thank for your job to support hackintosh community

 

I would like to share my tries:

 

this is your app

this is how i have it

 

your app produce (IMHO) a wrong Device id for RX 6950 xt BF7B0000

the right one is: BF730000

 

But also doing this simple modify system does not boot and it loops in infinite errors

Maybe is it for the latest iGpu part?

 

 

 

[Cyberdevs]

17 minutes ago, jlrycm said:

@JorgeMax @Cyberdevs what’s the real purpose of this “IOFBneedsRefresh” property? Is it safe to keep it permanently in AMD dGPUs like the RX 6600?

That setting is supposed to fix the second stage boot but it wasn't working in my tests, I'll investigate further more and see if I can get it to work.

 

@fabiosun

You're most welcome, yup you're correct the device ID needs to be spoofed to use the RX 6900XT's, I fixed t and I will replace the file I attached in my previous post. Thanks for catching that. The BF7B0000 is the original device ID for RX 6950 XT.
But this issue might have been because of the dual GPU in your rig, I didn't consider that.