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Latitude 7290: help required to fine-tune Monterey build


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I followed some topics here on the forum, and managed to install Monterey at a latitude 7290.

I've managed to adjust things like boot without USB, Wifi, Apple ID, Sound...

But even trying hard I couldn't understand myself with the touchpad, video driver, and external monitor (Neither using doc, nor via HDMI)

Can someone with more experience help me understand where I'm going wrong?



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Thanks for the answer!

Latitude Specs:

8th Gen Intel Core i7-8650U Processor (Quad Core, 8MB Cache, 1.9GHz,15W)

Integrated UHD Graphics 620 with Displayport over USB Type-C

Intel Dual-Band Wireless-AC 8265 Wi-Fi + BT 4.2 Wireless Driver (2x2)

16GB, 1x16GB, DDR4 2400MHz Memory

M.2 Samdisk X600


OpenCore DBG-075-2021-11-02


I Removed the file "AirportItlwm.kext" (13.6Mb) to due size limit of file upload to the site

EFI.zip IORegistryExplorer.ioreg

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Thank you very much!!

Wow amazing!
EFI fit perfectly


I just added the AirportItlwm.kext


Working (Tested)

  • HDMI - 2° Display (Extended Display)
  •  Sleep & Wake
  •  Smart Touchpad w/ Gestures
  •  WebCam
  • Sound (Internal Speaker)
  • Mic (Internal)
  •  USB 3.0
  •  WiFi (2.4 + 5GHz)
  •  MicroSD card reader
  •  Native hotkey support w/ Fn keys
  •  USB-C charging
  •  USB-C Display port - 2° Display (Extended Display)
  • USB-C Data transfer



  •  Bluetooth
  • 3° Display - Using Dell USB-C Dock (Work Just as screen mirror of 2° Display)



  • Ethernet Port
  • NFC
  • SmartCard Reader

Without wanting to overuse the help... Any suggestions for Bluetooth and the 3rd screen?

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Experienced the same behaviour with my 7490 when I had it: 3rd display off Dock only every worked in mirror mode because it grabbed the same connector as the 2nd display connected to laptop's HDMI port.


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You need to ascertain which KBL framebuffer connector your various display ports attach to, whether the laptop's built-in ones or the Dock's. If multiple ports attach to the same connector, there's little chance you'll get them to work as independent displays simultaneously.


Post a new IOReg, your original one showed you were using incorrect settings (Haswell HD4600 properties injection).

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