Recent content by JeromeAstero

I found the reason for the incorrect display of graphics. The problem was the missing setting in the BIOS - Initial Display Output with the CSM turned off. I turned on CSM, changed Initial Display Output to IGFX, and turned off CSM. Graphics are initialized correctly through 07009B3E...

I tried. Graphics are output through an external video card. In IOREG, I can see that igpu has loaded.

But after all, I need to display the image through igpu and hdmi / type-c on the rear panel :)

With this EFI the system started up. The video is output through an external video card.

I tried, the GPU was not initialized.

I tried with given settings Video does not start

Could you please send me AppleIntelCFLGraphicsFramebuffer.kext from S/L/E?

I tried. The driver did not load

Middleman, I cannot understand. 0000C598 or 0000C59B (or 000098C5 or 00009BC5?) should I specify for AAPL, ig-platform-id? Regarding the reverse-byte-order, if you flip 0000C598, you should get 98C50000. Or I misunderstood?

With framebuffer 030098C5 the igpu not initialized. There is no signal on all video outputs and there were no igpu lines in the download log

I also noticed such a strange thing. Intel power gadget does not display information about GPU power. Also, the GPU frequency reaches (according to the gadget) 5.37GHZ

I tried changing the model to imac20,1 - it didn't help. I also tried removing everything from deviceproperties - it didn't help.

Here is my ioreg. Received after removing the section from device properties and connecting the display to the type -c port (since without the connector patch, the hdmi output does not work at all)

While looking for the problem, I found your assembly repeatedly. The fact is that I do not use any patches / injections of CPUID1Data and device-id for my devices. Maybe I misunderstood you, but I cannot find the information in the WEG guide for framebuffer 030098C5, where did you find this...

Yes, I disabled the 3090 via ssdt. I am connecting the monitor to HDMI on the motherboard backplate. When you connect a display already on a running system to the type-c ports in ioreg, nothing changes, display-0 remains only on the hdmi port (index 03, busid 04). Today I tried to start mac...