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

[RMTT]

@RMTT,

I have not used that kext myself but have seen a number of users report success with it so I have no reason to doubt it.

Which SMBIOS are you using ?

Cheers
Jay

MacbookPro 13,1
And if I use MacbookPro 13,3 , the stuck will disappear, but my HDMI cannot output.

 

[jaymonkey]

MacbookPro 13,1 ....And if I use MacbookPro 13,3 , the stuck will disappear, but my HDMI cannot output.

@RMTT,

Thats very odd as MacbookPro 13,1 does not have a TouchID sensor, but MacbookPro 13,3 does ????

Cheers
Jay

 

[RMTT]

@RMTT,

Thats very odd as MacbookPro 13,1 does not have a TouchID sensor, but MacbookPro 13,3 does ????

Cheers
Jay

Maybe that stuck is not caused by touchID, but HDMI output?

 

[Maf3r0]

What a guide!!!

Finally I was abble to get video signal on UHD 630, from 8100.

My currently board is H310M-S2P, with comes to three video ports: VGA, HDMI and DVI-d. With help of this guide I've tried VGA cable and work at first time! Awesome!!! With existing H310M patch, HDMI was fixed as well - but no DVI-d signal. So, I've edit some values and make some tests and I get video signal from all 3 ports!

Once again, fantastic guide!

Sorry if I don't see before, but here is patch to H310M-S2P rev1.0 (with 8100 and Mojave 10.14.6):

Index 1, BusID 0x05, Type DP
Index 2, BusID 0x02, Type DigitalDVI
Index 3, BusID 0x04, Type HDMI

        <key>Properties</key>
        <dict>
            <key>PciRoot(0x0)/Pci(0x2,0x0)</key>
            <dict>
                <key>AAPL,ig-platform-id</key>
                <data>
                BwCbPg==
                </data>
                <key>AAPL,slot-name</key>
                <string>Internal@0,2,0</string>
                <key>device-id</key>
                <data>
                mz4AAA==
                </data>
                <key>device_type</key>
                <string>VGA compatible controller</string>
                <key>enable-hdmi20</key>
                <data>
                AQAAAA==
                </data>
                <key>enable-lspcon-support</key>
                <data>
                AQAAAA==
                </data>
                <key>framebuffer-con0-busid</key>
                <data>
                BQAAAA==
                </data>
                <key>framebuffer-con0-enable</key>
                <data>
                AQAAAA==
                </data>
                <key>framebuffer-con0-flags</key>
                <data>
                xwMAAA==
                </data>
                <key>framebuffer-con0-index</key>
                <data>
                AQAAAA==
                </data>
                <key>framebuffer-con0-pipe</key>
                <data>
                EgAAAA==
                </data>
                <key>framebuffer-con0-type</key>
                <data>
                AAQAAA==
                </data>
                <key>framebuffer-con1-busid</key>
                <data>
                AgAAAA==
                </data>
                <key>framebuffer-con1-enable</key>
                <data>
                AQAAAA==
                </data>
                <key>framebuffer-con1-flags</key>
                <data>
                xwMAAA==
                </data>
                <key>framebuffer-con1-index</key>
                <data>
                AgAAAA==
                </data>
                <key>framebuffer-con1-pipe</key>
                <data>
                EgAAAA==
                </data>
                <key>framebuffer-con1-type</key>
                <data>
                BAAAAA==
                </data>
                <key>framebuffer-con2-busid</key>
                <data>
                BAAAAA==
                </data>
                <key>framebuffer-con2-enable</key>
                <data>
                AQAAAA==
                </data>
                <key>framebuffer-con2-flags</key>
                <data>
                xwMAAA==
                </data>
                <key>framebuffer-con2-index</key>
                <data>
                AwAAAA==
                </data>
                <key>framebuffer-con2-pipe</key>
                <data>
                EgAAAA==
                </data>
                <key>framebuffer-con2-type</key>
                <data>
                AAgAAA==
                </data>
                <key>framebuffer-fbmem</key>
                <data>
                AAAAAA==
                </data>
                <key>framebuffer-patch-enable</key>
                <data>
                AQAAAA==
                </data>
                <key>framebuffer-stolenmem</key>
                <data>
                AACQAw==
                </data>
                <key>framebuffer-unifiedmem</key>
                <data>
                AAAAYA==
                </data>
                <key>hda-gfx</key>
                <string>onboard-1</string>
                <key>model</key>
                <string>Intel UHD Graphics 630</string>
            </dict>
        </dict>

 

[Thomazella]

Patch provided for Asus Prime H370M-Plus works for HDMI output in board ASUS PRIME Z390M PLUS. DVI untested. please update OP to reflect this other asus board @CaseySJ

 

[BulletZ]

Hi there,

I'm going nuts with something I can't explain on one of my hackintoshes, here goes:

Config is ASRock B250M Pro4 (3 video outputs available: HDMI, DVI-D and VGA), i5-7400, no DGPU. SMBIOS iMac18,1. Display is connected via DVI-D. Config was working flawlessly in 10.13 (including sleep/wake, hw accel, sound, etc). Freshly upgraded to 10.14 (updated all extra kexts before rebooting, including WhateverGreen, Lilu, etc). Now boots to no signal midway during Apple logo progress bar.

Tried to follow the guide to the letter via screen sharing (which works): I eventually tried every possible combination of BusID for each Index (that took a long time), to no avail: display is never detected in Hackintool.

Then I tried with a different display connected via HDMI: same thing.

Just before hanging myself, I tried with both displays connected: big surprise: DVI-D display turns on and works just fine. Without any patch applied Hackintool detects two active connectors: Port0, BusID 0x05 for the HDMI display (which gets no signal) and Port7, BusID 0x06 for the DVI-D display (which works).

It only works (half works) if both displays are connected, otherwise I'm back to square one. I understand Port0 shouldn't happen since it's for internal LVDS, so I'm starting to wonder if the selected SMBIOS (iMac18,1) somehow affecting how the OS parses the connector. I don't exactly know what to try next so any help would be much welcome.

Thanks!

 

[CaseySJ]

@BulletZ,

What configuration are you currently using?

INDEX, BUSID, TYPE
xx, xx, xx
xx, xx, xx
xx, xx, xx

Platform ID: ?
Device ID: ?

 

[BulletZ]

@BulletZ,

What configuration are you currently using?

Platform ID: 0x59120000 (I tried 0x591B0000 too, no difference)
Device ID: 0x59128086

Index, BusID, Type:
1, 0x05, HDMI (<- HDMI display shows as Port0 here)
2, 0x04, HDMI
3, 0x06, HDMI (<- DVI display shows as Port7 here)
-1, 0x00, Dummy

Thanks

 

[BulletZ]

One important bit I forgot: in order for the pseudo dual display to work (one no signal one with signal), I had to disable AGDP via this patch: https://www.tonymacx86.com/threads/...applegraphicsdevicepolicy.272271/post-1914237

Without this patch, with both displays connected Hackintool only detects the HDMI display on Port0 and there's no signal to either display: that's why I'm suspecting something's up with this particular SMBIOS...

 

[thamizhan.st]

Hi I'm having Gigabyte z390 Pro wifi and i7 9700k with UHD 630. This mobo only have one HDMI port of v1.4.

I exactly followed the steps mentioned, and I have identified that my HDMI is mapped to Port 7 ( Index 3). The bus id in this display is by default 0x04. With this configuration my HDMI monitor goes to black but when I try to connect through screen sharing with my macbook pro it shows correct acceleration value and display shows exact screen size and resolution of my monitor, but the monitor is not showing anything just black. Please check the attached screenshot taken through screen sharing session.

I also tried setting different bus id from 0x01 to 0x06. none of them is working. When I set other than 0x04 the display is not detected and the iGPU info is not shown on About mac screen and the screen also not in normal resolution of the monitor, it was like general mac mini display resolution.