[solved] Black Screen after upgrade to High Sierra

[RehabMan]

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

Your Clover bootlog is not the same as config.plist.
Your bootlog is generated at EFI/Clover/misc/preboot.log if you press F2 at the main Clover screen.
You can also access it with bdmesg (in Terminal) after booting.

 

[delicious]

Ah ok sorry. I get the following (256 byte EDID)

1:533 0:000 === [ RestSetup macOS ] ===================================

1:533 0:000 EdidDiscovered size=256

1:533 0:000 ------- EDID Table

1:533 0:000 000 | 00 FF FF FF FF FF FF 00 1E 6D

1:533 0:000 010 | 09 5B F9 6F 03 00 07 1B 01 04

1:533 0:000 020 | B5 3C 22 78 9E 30 35 A7 55 4E

1:533 0:000 030 | A3 26 0F 50 54 21 08 00 71 40

1:533 0:000 040 | 81 80 81 C0 A9 C0 D1 C0 81 00

1:533 0:000 050 | 01 01 01 01 4D D0 00 A0 F0 70

1:533 0:000 060 | 3E 80 30 20 65 0C 58 54 21 00

1:533 0:000 070 | 00 1A 28 68 00 A0 F0 70 3E 80

1:533 0:000 080 | 08 90 65 0C 58 54 21 00 00 1A

1:533 0:000 090 | 00 00 00 FD 00 38 3D 1E 87 38

1:533 0:000 100 | 00 0A 20 20 20 20 20 20 00 00

1:533 0:000 110 | 00 FC 00 4C 47 20 55 6C 74 72

1:533 0:000 120 | 61 20 48 44 0A 20 01 2E 02 03

1:533 0:000 130 | 11 71 44 90 04 03 01 23 09 07

1:533 0:000 140 | 07 83 01 00 00 02 3A 80 18 71

1:533 0:000 150 | 38 2D 40 58 2C 45 00 58 54 21

1:533 0:000 160 | 00 00 1E 56 5E 00 A0 A0 A0 29

1:533 0:000 170 | 50 30 20 35 00 58 54 21 00 00

1:533 0:000 180 | 1A 00 00 00 00 00 00 00 00 00

1:533 0:000 190 | 00 00 00 00 00 00 00 00 00 00

1:533 0:000 200 | 00 00 00 00 00 00 00 00 00 00

1:533 0:000 210 | 00 00 00 00 00 00 00 00 00 00

1:533 0:000 220 | 00 00 00 00 00 00 00 00 00 00

1:533 0:000 230 | 00 00 00 00 00 00 00 00 00 00

1:533 0:000 240 | 00 00 00 00 00 00 00 00 00 00

1:533 0:000 250 | 00 00 00 00 00 C8

1:533 0:000 mem_detected 3135181056Mb

1:533 0:000 read_nVidia_ROM

1:533 0:000 Using PRAMIN fixups

1:656 0:122 PROM

1:903 0:247 version 86.06.27.00.60

1:903 0:000 nVidia EVGA GeForce GTX 1060 -1159786240MB NV136 [10DE:1C03] :: PciRoot(0x0)\Pci(0x1,0x0)\Pci(0x0,0x0) => device #1

1:903 0:000 Nvidia: VideoPorts: undefined, default to: 2

1:903 0:000 set NVCAP: 04000000-00000300-0C000000-00000007-00000000

1:903 0:000 RCBA disabled; cannot use it

1:903 0:000 setting specified layout-id=1 (0x1)

1:903 0:000 stringlength = 3250

1:903 0:000 CurrentMode: Width=3840 Height=2160

Also - I tried to change SMBIOS to 18,3 as I heard it was a 17,1 problem, but Bootlog still says 17,1

 

[RehabMan]

Ah ok sorry. I get the following (256 byte EDID)

It's fine (256 byte EDID is just with an extension block). Patch the 256 EDID (the patching is done to just byte 20 anyway).
You can read about EDID here:
https://en.wikipedia.org/wiki/Extended_Display_Identification_Data

Also - I tried to change SMBIOS to 18,3 as I heard it was a 17,1 problem, but Bootlog still says 17,1

Why are you using a desktop SMBIOS with your laptop?

 

[delicious]

It's fine (256 byte EDID is just with an extension block). Patch the 256 EDID (the patching is done to just byte 20 anyway).
You can read about EDID here:
https://en.wikipedia.org/wiki/Extended_Display_Identification_Data

Tried to patch once using iMac Retina display EDID but byte 20 was already B5 as in the EDID from FixEDID. Will try a different one.

Why are you using a desktop SMBIOS with your laptop?

I'm using a desktop with external 4k monitor - I understood that this was a common problem with both laptops and desktops?

 

[RehabMan]

I'm using a desktop with external 4k monitor - I understood that this was a common problem with both laptops and desktops?

This forum is for laptops only.

 

[Dimitree]

so I'm experiencing black screen after sleep (high sierra 10.13.2).
I added the custom EDID (using 'B5' and new checksum) but it seems, by looking at IOReg, that it is not loaded, indeed the 20th byte is still the original '95' and the checksum too.
I placed the DisplayVendorID-6af folder inside /S/L/Displays/Contents/Resources/Overrides, of course..then reboot.
what could I do?
I attached the EDID and IOReg output

 

[RehabMan]

so I'm experiencing black screen after sleep (high sierra 10.13.2).
I added the custom EDID (using 'B5' and new checksum) but it seems, by looking at IOReg, that it is not loaded, indeed the 20th byte is still the original '95' and the checksum too.
I placed the DisplayVendorID-6af folder inside /S/L/Displays/Contents/Resources/Overrides, of course..then reboot.
what could I do?
I attached the EDID and IOReg output

Does the file/folder in Resources/Overrides have correct permissions?

 

[Dimitree]

Does the file/folder in Resources/Overrides have correct permissions?

yes they both have System R/W permissions like the other files/folders in the Overrides dir. I used terminal sudo mkdir command to make that new dir and sudo cp to copy the file in there

 

[RehabMan]

yes they both have System R/W permissions like the other files/folders in the Overrides dir. I used terminal sudo mkdir command to make that new dir and sudo cp to copy the file in there

Set a display name in the plist so you can tell whether it is being picked up or not.

 

[Dimitree]

Set a display name in the plist so you can tell whether it is being picked up or not.

I tried to add a DisplayProductName key to the plist. Seems it's not picked by the system.
I'm attaching my problem report, a terminal output about the permissions of the Overrides dir, and the new plist file.
maybe I'm doing something wrong.

if I can't fix this, I guess I need to install 10.12 instead of 10.13,
or maybe inject EDID using Clover?