[solved] Black Screen after upgrade to High Sierra

[bhavik9243]

post #45 updated. read it carefully.

your edited EDID is wrong. read post #45 and try again.

@rafigh89

Hi, I have tried again as per post #45 and sleep is working and wake from sleep also working except display flickering,
now is there any solution to fix display flickering? i have attached my EDID which i have modified.
Thank you.

 

[rafigh89]

@rafigh89

Hi, I have tried again as per post #45 and sleep is working and wake from sleep also working except display flickering,
now is there any solution to fix display flickering? i have attached my EDID which i have modified.
Thank you.

your new edited EDID is correct. test other values for Byte 20, like 95 or A5.

 

[bhavik9243]

your new edited EDID is correct. test other values for Byte 20, like 95 or A5.

@rafigh89
with A5 screen getting blank, with 95 system boots up fine, sleep working fine but wake from sleep getting screen flickering.

 

[rafigh89]

@rafigh89
with A5 screen getting blank, with 95 system boots up fine, sleep working fine but wake from sleep getting screen flickering.

This new hackintosh issue related to display after sleep or standby is not well known and using an edited EDID is the only fix for it until now. If it's not work for you, then you must wait for a better/comprehensive fix from hackintosh experts. Also you can provide problem reporting files and get help from @RehabMan ,maybe there's another problem with your system.

 

[bhavik9243]

This new hackintosh issue related to display after sleep or standby is not well known and using an edited EDID is the only fix for it until now. If it's not work for you, then you must wait for a better/comprehensive fix from hackintosh experts. Also you can provide problem reporting files and get help from @RehabMan ,maybe there's another problem with your system.

@rafigh89

i understand. and thank you for your response. i will provide reporting files.

 

[shdkpr2008]

@rafigh89 @RehabMan
i7-6200U
HD520 0x19160000 0x191b0000

MacOS 13 Surface Pro 4
Installed successfully, boots with fake ig-platform-id.

Problem :
BLACK SCREEN (BACKLIGHT ON) while using correct ig-p-id, although I could work with guess.

What I tried :
1) Enforce APLINTLGrapBuffer kext with fake id, min memory and dvmt patches
2) Lilu+GraphicsFixup+DVMT kext patches
3) Injected EDID A5,95,B5 along with 1) and 2) also seperately. I used both clover injection and displays/overrides

While doing all this I was using IGPU and Config SSDT patches.
I could not checked miniDP signals.
As I am reverting back to 10.12.6 I cannot provide anything for support, yet I ask if someone have faced it before and if there exits any solution.

 

[RehabMan]

Problem :
BLACK SCREEN (BACKLIGHT ON) while using correct ig-p-id, although I could work with guess.

Off-topic.
This thread deals only with black screen after sleep.

Open a separate thread.
Read FAQ, "Problem Reporting" again. Carefully. Attach all requested files/output.
https://www.tonymacx86.com/threads/faq-read-first-laptop-frequent-questions.164990/
Use the tool mentioned in the FAQ, that way it is less likely you'll omit something.

 

[delicious]

lets try with an example (my display):
open Darwin Dumper, choose EDID from list and hit Run. its create 3 files in saving path: EDID.bin, EDID.hex, EDID.txt
my default EDID (EDID.txt) is:

header:          00 ff ff ff ff ff ff 00
serial number:   06 af ed 38 00 00 00 00 2b 18
version:         01 04
basic params:    95 22 13 78 02
chroma info:     51 25 93 58 57 8f 28 1f 50 54
established:     00 00 00
standard:        01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01
descriptor 1:    78 37 80 b4 70 38 2e 40 6c 30 aa 00 58 c1 10 00 00 18
descriptor 2:    00 00 00 0f 00 00 00 00 00 00 00 00 00 00 00 00 00 20
descriptor 3:    00 00 00 fe 00 41 55 4f 0a 20 20 20 20 20 20 20 20 20
descriptor 4:    00 00 00 fe 00 42 31 35 36 48 54 4e 30 33 2e 38 20 0a
extensions:      00
checksum:        e9

according to above, Default EDID is:

00FFFFFF FFFFFF00 06AFED38 00000000 2B180104 95221378 02512593 58578F28 1F505400 00000101 01010101 01010101 01010101 01017837 80B47038 2E406C30 AA0058C1 10000018 0000000F 00000000 00000000 00000000 00200000 00FE0041 554F0A20 20202020 20202020 000000FE 00423135 3648544E 30332E38 200A00E9

so in default EDID Byte 20 (every two words are one Byte-count from zero-) and Check sum (last byte) are 95 and E9 respectively.
then open EDID.bin (created by Darwin dumper) using FixEDID app and choose Apple iMac Display (16:10)-you can test another option- and select make. it's create 3 files/folder on desktop. Open DisplayProductID-XXX inside DisplayVendorID-xxx Folder by plist editor. IODisplayEDID value is:

00FFFFFF FFFFFF00 061012A0 00000000 1C160104 B5301B78 226FB1A7 554C9E25 0C505400 00000101 01010101 01010101 01010101 01017837 80B47038 2E406C30 AA0058C1 10000018 000000FC 00694D61 630A2020 20202020 20200000 00FE0041 554F0A20 20202020 20202020 000000FE 00423135 3648544E 30332E38 200A00BC

now we know that byte 20 for Apple iMac Display (16:10) is B5. delete IODisplayEDID value in DisplayProductID-xxx created by FixEDID and paste default EDID value (Exept Byte 20 and check sum Byte). for calculate check sum you can use this online tools. just copy all bytes (except the last one), in my case:

00FFFFFF FFFFFF00 06AFED38 00000000 2B180104 B5221378 02512593 58578F28 1F505400 00000101 01010101 01010101 01010101 01017837 80B47038 2E406C30 AA0058C1 10000018 0000000F 00000000 00000000 00000000 00200000 00FE0041 554F0A20 20202020 20202020 000000FE 00423135 3648544E 30332E38 200A00

and calculate check sum. for mine is "C9"
So new and final IODisplayEDID value for push in Overrides folder Is:

00FFFFFF FFFFFF00 06AFED38 00000000 2B180104 B5221378 02512593 58578F28 1F505400 00000101 01010101 01010101 01010101 01017837 80B47038 2E406C30 AA0058C1 10000018 0000000F 00000000 00000000 00000000 00200000 00FE0041 554F0A20 20202020 20202020 000000FE 00423135 3648544E 30332E38 200A00C9

after edit EDID its better to correct DisplayProductID and DisplayVendorID acording to EDID (Bytes 8,9,10,11). for my display Byte 8 and 9 :06AF (DisplayVendorID)
Byte 10 and 11: ED38(DisplayProductID)
after convert these Bytes from Hex to Dec:
DisplayVendorID=1711
DisplayProductID=14573 (for convert DisplayProductID Hex to Dec, first reverse it, then convert. for mine ED38>38ED>14573).
finally save DisplayVendorID-xxx folder containing DisplayProductID-xxx file to /System/Library/Displays/Contents/Resources/Overrides/
fix permissions and restart.
I hope that this example be useful.

I really want to try this but when I use FixEDID, the EDID that comes out is 256 bytes, when my default EDID (and yours) is only 128... What do I have to do?

Thanks

 

[RehabMan]

I really want to try this but when I use FixEDID, the EDID that comes out is 256 bytes, when my default EDID (and yours) is only 128... What do I have to do?

Thanks

Check your Clover bootlog for 128 byte EDID.

 

[delicious]

Check your Clover bootlog for 128 byte EDID.

I assume this is in the Graphics section? I don't have any settings installed there. (see attached)