[GUIDE] General Framebuffer Patching Guide (HDMI Black Screen Problem)

[grothag]

Sorry to spam. But thank you so much !! After reading many tutorials, yours is only one that is any good. Your hint to use display port saved me ! I now have acceleration working on AsRock Z390M itx/ac. 5 dp bus5, 6 hdmi bus2, 7 hdmi bus4. Also audio is working over hdmi, yay.

 

[headkaze]

Didn't know I could do that. Just tried it, both DP and HDMI has a black screen.

My apologies but this feature had a bug whereby it would not set framebuffer-patch-enable which means the patches were not being enabled. I have released a new version of Hackintool to address this issue.

 

[CaseySJ]

Sorry to spam. But thank you so much !! After reading many tutorials, yours is only one that is any good. Your hint to use display port saved me ! I now have acceleration working on AsRock Z390M itx/ac. 5 dp bus5, 6 hdmi bus2, 7 hdmi bus4. Also audio is working over hdmi, yay.

Good job! Your board is also being added to the Compilation in Post #1.

 

[Janja]

The text in that screenshot is the "core dump" after the crash. The cause of the crash is most likely mentioned a couple of pages before this. So the best thing is to take a video with your smartphone (hold the phone steady or put phone on a stand) then scrub a few frames before the core dump, capture screenshots (on iPhone X you can capture screenshot by pressing Side Button and Volume-Up Button at the same time), and post.

OK, now I can boot, with IntelGFX -> 0x3e928086, Graphics->Inject->Intel->YES, ig-platform-id->0x5912000, but I found this your post and I haven't AppleIntelFramebuffer in IGPU, but I have in S/L/E/AppleIntelCFLGraphicsFramebuffer.kext

 

[cri1998stortix]

Yes, I tested all 3 ports (DP,HDMI,HDMI).

Now I try your settings for the sleep and I will tell you if they work.

@aeromatic ! Thanks for your contribution, I just wanted to ask you for information, I have your equal configuration, if you see the post #366, but I've given a problem, connecting the dp on 0x05 is not working, I tried to insert it on 0x04 and it works, but it's very green with the image.
Since we have the same configuration and you confirm that everything works for you, you could tell me what a version of the bios you have? Because I can't understand why you and I can t work! thank you very much!

 

[aeromatic]

@aeromatic ! Thanks for your contribution, I just wanted to ask you for information, I have your equal configuration, if you see the post #366, but I've given a problem, connecting the dp on 0x05 is not working, I tried to insert it on 0x04 and it works, but it's very green with the image.
Since we have the same configuration and you confirm that everything works for you, you could tell me what a version of the bios you have? Because I can't understand why you and I can t work! thank you very much!

Actually the DP is the only port that works without patches...
Did you copy and paste my config.plist attached in the post #1?
Do you use any adaptor? The resolution and graphics acceleration works? DP, like HDMI are digital ports and usually they fully work or not at all.

The BIOS version, according to my experience, is not correlated to GPU output. Anyway I use the V1.20 because the others gave me sleep/wake issues.

 

[CaseySJ]

OK, now I can boot, with IntelGFX -> 0x3e928086, Graphics->Inject->Intel->YES, ig-platform-id->0x5912000, but I found this your post and I haven't AppleIntelFramebuffer in IGPU, but I have in S/L/E/AppleIntelCFLGraphicsFramebuffer.kext

• See that little "x" to the right of the search bar? After entering "IGPU" in the search field, you must click that "x". Then the device tree on the left side will expand and show you the child nodes under IGPU. One of them should be AppleIntelFramebuffer if the IGPU is properly configured.
• Also, you should not be using Platform ID 0x5912000, but instead, 0x3E9B0007.
• Which SMBIOS name are you using? iMac18,3? Macmini8,1? ...?

 

[cri1998stortix]

Actually the DP is the only port that works without patches...
Did you copy and paste my config.plist attached in the post #1?
Do you use any adaptor? The resolution and graphics acceleration works? DP, like HDMI are digital ports and usually they fully work or not at all.

The BIOS version, according to my experience, is not correlated to GPU output. Anyway I use the V1.20 because the others gave me sleep/wake issues.

@aeromatic
Yeah, I'm using the configuration I found in the first explanation page with the name of my Mobo, the other two hdmi doors are working perfectly. this is my config p.list and ioreg file

 

[CaseySJ]

@aeromatic
Yeah, I'm using the configuration I found in the first explanation page with the name of my Mobo, the other two hdmi doors are working perfectly. this is my config p.list and ioreg file



View attachment 392982



View attachment 392981

For the DP port, are you using a DP-to-HDMI adapter? Or just a DP-to-DP cable?

 

[aeromatic]

@aeromatic
Yeah, I'm using the configuration I found in the first explanation page with the name of my Mobo, the other two hdmi doors are working perfectly. this is my config p.list and ioreg file



View attachment 392982



View attachment 392981

Your DP Bus ID is wrong. It has to be 0x05!