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Dell Latitude E5440: need help for Big Sur


devilmig

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Hello, i've been using this efi for a week, its a combination of efi i've found around the internet, almost everything works except for brightness control and sleep

HDMI sometimes works but puts my integrated screen in black and other times just goes blank without changing to hdmi, honestly i dont know what else to do, i need help.

 

Specifications:

DualCore Intel Core i3-4030U

Intel HD Graphics 4400

8GB DDR3

Realtek ALC292

Intel Dual Brand Wireless AC 7260

Intel Ethernet Connection l218-LM

 

What's not working:

Sleep;

HDMI;
Brightness control;
Fn button.

 

It works:

Graphics acceleration;

Internet;
Audio;
Bluetooth;

Ethernet;
Keyboard and mouse;
Trackpad.

 

My EFI is too large so here it is https://drive.google.com/file/d/1aMbBvHA_96cfUEVCOfyvZ-AHjjk3nlEB/view?usp=share_link

Ive attached a copy of my IOReg

IORegister.ioreg

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HDMI audio only works on Haswell Hackintosh if:

  1. you patch the associated framebuffer connector to HDMI type (00080000) -> not the case in the last IOReg you posted but corrected in Jake's last config
  2. you rename ACPI device B0D3 device to HDAU -> that was the case in the last IOReg you posted

Make sure you select the HDMI audio output, it has to be done manually and volume is controlled on the HDMI device itself, not the laptop.

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