Gigabyte H370M-based PC with UHD 630: not booting Big Sur after installation

[denkteich]

If I'm right Kaby Lake is generation before Coffee Lake.

Wouldn't it be better to go for new Coffee Lake configuration from scratch?

[Hervé]

This is getting a little difficult to follow...

I gave you the list of expected Coffee Lake settings. Did you try them out?

[denkteich]

yes tried them, same issue.

 

trying to boot with a new efi from scratch.

will post the result.

 

I'll try your settings again. the efi from scratch fucked up completely.

[denkteich]

now i'm running into the same issue like with the scratch efi...

i think i did all your settings.

 

EFI.zip

[Hervé]

Not quite! You're injecting a totally duff value for your framebuffer layout.

 

Also make sure that you're using all appropriate files for your given OC version. For instance OC 0.7.6 with files from a previous version is a complete no-no. You've got to use the entire fileset from the selected OC release.

 

Good luck.

[denkteich]

Hi Hervé,

 

thanks for the hint, I thought Ive put in the right value.

I'll double check everything, also the files.

 

keep you posted.

 

cheers

Harald

[denkteich]

double checked files and entries.

stuck again, same spot.

 

config.plist.zip

[Hervé]

Are you deliberately doing things incorrectly?

[denkteich]

No, maybe i'm to confused now.

 

In your first post you wrote "Intel i5-8400 is 8th gen Coffee Lake fitted with UHD 630 iGPU carrying is 0x3E92"

 

and:

AAPL,ig-platform-id 07009B3E DATA

framebuffer-patch-enable 1 NUMBER

framebuffer-stolenmem 00003001 DATA

framebuffer-fbmem 00009000 DATA

 

should 9b3E or 3E92 be in the config?

[Hervé]

Neither should be in the config...

1. you do not need to fake/inject any iGPU id since CFL id 0x3E92 is natively supported by macOS (and, for very obvious reasons, you do not need to fake/inject a device's own id)
2. on the other hand you need to inject CFL layout (i.e. ig-platform-id) 0x3E9B0007. I posted the 4 x properties to inject on p1 (as per what you copied right above) so why don't you just configure that?
3. I added a link to the Whatevergreen User Manual on p1, you should consult it to try and understand how things work and learn what the iGPU id is vs. framebuffer layout/platform id.
4. I added a link to ARK Intel for your i5-8400 CPU on p1. You should also consult it to understand a little about your CPU/iGPU specs.

ID: 3E9B0007, STOLEN: 57 MB, FBMEM: 0 bytes, VRAM: 1536 MB, Flags: 0x00801302
TOTAL STOLEN: 58 MB, TOTAL CURSOR: 1 MB (1572864 bytes), MAX STOLEN: 172 MB, MAX OVERALL: 173 MB (181940224 bytes)
Model name: Intel UHD Graphics 630
Camellia: CamelliaDisabled (0), Freq: 0 Hz, FreqMax: 0 Hz
Mobile: 0, PipeCount: 3, PortCount: 3, FBMemoryCount: 3
[1] busId: 0x05, pipe: 9, type: 0x00000400, flags: 0x000003C7 - ConnectorDP
[2] busId: 0x04, pipe: 10, type: 0x00000400, flags: 0x000003C7 - ConnectorDP
[3] busId: 0x06, pipe: 8, type: 0x00000400, flags: 0x000003C7 - ConnectorDP
01050900 00040000 C7030000
02040A00 00040000 C7030000
03060800 00040000 C7030000