Built-in display issue on MACHENIKE Laptop

[RehabMan]

I mean, some ALCxxx audio cards when using AppleALC will have extra built-in input/output like this(Just ignore BL and USB Audio)
View attachment 354961
(Extra Audio Output devices)

Depends on XML/device capability.

 

[a361445613]

Easy but wrong.

This method being used, I wonder if previous-implemented light hotkeys is still valid. Or just plug an USB keyboard to unlock SysPref--Keyboard--Shortcuts--Display to modify the hotkey for changing my backlight? Furthermore, I have an Apple-designed Magic Keyboard 2, whose function key to modify the backlight is F1/F2. If I use this method, I am curious that if F1/F2 is still available.

(Apple Magic Keyboard 2, source: Apple US website)

 

[RehabMan]

This method being used, I wonder if previous-implemented light hotkeys is still valid. Or just plug an USB keyboard to unlock SysPref--Keyboard--Shortcuts--Display to modify the hotkey for changing my backlight? Furthermore, I have an Apple-designed Magic Keyboard 2, whose function key to modify the backlight is F1/F2. If I use this method, I am curious that if F1/F2 is still available.
View attachment 354967
(Apple Magic Keyboard 2, source: Apple US website)

The backlight guide has a link for keyboard control... (simple matter of patching EC query methods on ACPI).

 

[a361445613]

The backlight guide has a link for keyboard control...

Emm... Maybe modifying DSDT is beyond my capacity. I prefer to use compatible keyboard or plug USB keyboard to unlock the option to modify it...Temporary solution as it is, it is easy enough without too much time consumption.

 

[RehabMan]

Emm... Maybe modifying DSDT is beyond my capacity.

It is not difficult.

 

[a361445613]

It is not difficult.

It still happens...And I found some new problems...If I boot with/without external displays, close my lids or not, the issue of sound and display is different...
Here are the new debug file, whose ioreg folder contain 4 ioreg files indicating different situations...

(Boot without external displays)



(Boot without external displays and then plug them in)

(Boot with external displays）

(Boot with external displays and close the lid)

Please note that only when I boot without external displays and no closing and opening the lid can the Bulit-in display works...Under any other circumstance it only returns with a black screen and adjustable backlight...

BTW, I forget to say that this laptop has three ports, VGA(Never used), HDMI and DP, but ig in framebuffer has only 3 connectors. and I found that the Iris ig (0x193B0005>05 00 3B 19)which has 4 connectors doesn't match a full bit in framebuffer file?

 

[RehabMan]

It still happens...

What is it?

Did you read here regarding patched EDID?
https://www.tonymacx86.com/threads/readme-common-problems-in-10-13-high-sierra.233582/

 

[a361445613]

What is it?

Did you read here regarding patched EDID?
https://www.tonymacx86.com/threads/readme-common-problems-in-10-13-high-sierra.233582/

You mean I need to use a patched EDID? or just use ioreg to get my original EDID and then fill it into Clover Configurator--Graphics and then tip "inject EDID"?

 

[RehabMan]

You mean I need to use a patched EDID? or just use ioreg to get my original EDID and then fill it into Clover Configurator--Graphics and then tip "inject EDID"?

You may need to patch byte 20 (read at the link provided).
With WhateverGreen, we must inject EDID with Devices/Properties (Clover's main EDID features will not work when Devices/Properties is being used).

 

[a361445613]

we must inject EDID with Devices/Properties (Clover's main EDID features will not work when Devices/Properties is being used).

I am sorry to tell you that I don't know how to inject that....