How to Fix Help. (HP Elitebook 2570p) IT has really bad graphics glitches on UEFI Native (Without CSM), but here on UEFI Hybrid (With CSM) i can see this over and over what is wrong?

By Ufuk Durgun
0

How to Fix Help. (HP Elitebook 2570p) IT has really bad graphics glitches on UEFI Native (Without CSM), but here on UEFI Hybrid (With CSM) i can see this over and over what is wrong?

This mini-guide provides a structural approach to troubleshoot and fix the issue.

Prerequisites

  • Confirm your hardware specifications (CPU, GPU, Motherboard).
  • Ensure you have a bootable recovery USB and backup your EFI.

Fix Steps

  1. Verify your network controller model (Intel, Broadcom, Realtek).
  2. Ensure the correct kext (e.g., AirportItlwm or BrcmPatchRAM) is loaded in your config.
  3. Clear network interfaces and reset NVRAM if changes don't apply.

Verification

  • Reboot and verify if the functionality is restored and stable under typical usage.

Original Question:



Hi RehabMan,

Thank you for this guide. I'm having a better understanding as I keep reading.

I have a couple of questions about the preparation of my installation files before I start installing high sierra on my hp elitebook 2570p. As the guide here covers both probooks and elitebooks, I wanted to make sure I have included all the kexts and config for my elitebook 2X70. The installation will not be a dual boot system, only High Sierra OS on hp 2570p on a single SSD. I understand the settings on the BIOS.

Before I ask Qs, here is my system details:

hp 2570p
-Mobile Intel QM77 Express
-3rd Generation Intel Core i5-3320M
-Intel HD Graphics 4000
-I have replaced my Wifi chipset with AR9285 and it was working on Sierra. (with AtherosWiFiInjector.kext and IOath3kfrmwr.kext)

Q1- I will use "config_HD4000_1366x768.plist" as it reflects my resolution and it's a 7-series hp laptop, right?

Q2- prior to installation, what kexts exactly I will need to have in my EFI/Clover/kexts/Other to have a smooth functioning OSX? Or will need to have them all no matter what? Because I have seen kexts here(e.g. HPFanReset.efi) for probooks that I thought I won't need them as mine is an elitebook.

I have managed to have pretty much everything I need working on Sierra but the battery status. I hope I have an OSX with a higher functionality on my laptop using this guide now.

Thanks and I'm ready to provide any more details in case of necessity.
 
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