<< Solved >> Random reboots on laptop HP EliteBook 840r G4 (Monterey)

[crackhead226]

Hi! I got a HP EliteBook 840r notebook and I managed to install Monterey on it with OpenCore.

Everything works. That is audio, wifi, graphics, bluetooth and so on.

However I still got this error, the laptop decides to shutdown and reboot randomly.

The reboots seem to be somewhat random. But if I play a 4k video on YouTube for a while it will probably reboot after a while. Anyone know what could be wrong here?

Hardware specs:
* Processor generation7th gen i5-7200U *2.5 GHz
* On-board graphics card model *Intel® HD Graphics 620
* DDR4 8 GB
* Audio systemBang & Olufsen
* Intel® My WiFi Technology (Intel® MWT)


Crash Report:

 

[crackhead226]

Update:
So I did some changes to my EFI. I changed some values for the iGPU, framebuffer info etc... I also changed some boot arguments. Now my system seems to only crash when I play a 4K video on YouTube with Safari. Does anyone know what the issue could be here?

 

[crackhead226]

Okay so I found what caused the kernel panic on Monterey 12.3.

It was the 'itlwm.kext'. Apparently, Monterey 12.3 and ‘Ethernet l225V’ causes crashes. Itlwm spoofed the Wi-Fi as an Ethernet device, maybe that’s the problem. I tried to add boot-arg ‘e1000=0’ , but that did not work. I uninstalled the 'itlwm.kext' and only use my ethernet for now.