HP Elitebook 830 screen flickers when charger is plugged in

[AJ194]

Hi All,

For a while now my laptopscreen starts flickering when the charger is plugged into the laptop. This stops when the charger is unplugged. The screen also flickers when I use another HP charger. 

I'm running windows 11 pro 64 bit, the flickering changes when I roll back or reinstall the graphic card driver. The flickering does not occur in the bios screen. 

Does anyone have a suggestion for what is causing this? Its very annoying. 

[ub6424]

Hello @AJ194 

Sorry to hear that you are having problems ... I would like to help you.

Let me check your current system configuration before we focus on the <flickering> ...

(1) Run    msinfo32

- Select <System Summary>:

--->>> Copy/screenshot/paste following key/value pairs:

OS Name

Version

System Model

System SKU ( equals HP product number (p/n) )

Processor

BIOS Version/Date

(2) Start Windows <Device Manager>

- Expand <Display adapters>

--->>> Send screenshot

(3) Please report your results

[AJ194]

Thanks for your reply.

I reinstalled windows so I could go back to windows 10. Unfortunately the problem persists. 

Processor Intel(R) Core(TM) i5-8250U CPU @ 1.60GHz 1.80 GHz
Installed RAM 16.0 GB (15.4 GB usable)
System type 64-bit operating system, x64-based processor

Edition Windows 10 Pro
Installed on ‎10/‎15/‎2022
OS build 19044.2130

BIOS Version: HP Q78 Ver. 01.21.01, 7/28/2022

[ub6424]

Hello @AJ194 

(1) Test your hardware Using the HP PC Hardware Diagnostics (UEFI)

--->>> Perform Component tests <AC Adapter / Battery>

https://support.hp.com/us-en/document/ish_2854458-2733239-16

See section <Running HP PC Hardware Diagnostics UEFI tests when Windows doesn't start>

See how it works:

https://www.youtube.com/watch?v=14GKIpGPNRM

(2) Please report your results ( error messages, take pictures )

( if serial number, device id, UUID, System Board CT Number is displayed, please blur )

[AJ194]

I did all the test available in the software package. Only during the full run some errors came up for the battery and the charging connector.

But if the problem is caused  by an hardware issue, why is the problem not showing up when windows is not running?

During the tests the laptop screen did not flicker for many hours. In windows its flicking every minute like an analogue television. 

[ub6424]

Hello @AJ194 

Thanks for reporting.

(1) HP Diagnostic report analysis

First error code: Battery error could be follow up error ( I ignore for the moment )

M8A8R1-B6KB93-MFGJ3G-08FH03: This is very bad news

Failure ID Tag	Test Date	Failure Code	Device	Includes	Error Message
M8A8R1-B6KB93-MFGJ3G-08FH03	10/18/22	21	System/Processor Board	Backplane Board, System Board, Processor, Processor Board	TPM Failure

(2) Please send me a very clearly visible picture of the charger jack on the notebook. Is there any damage, pins broken / bent ?

Kind regards

[AJ194]

I think the port looks relatively nice. The laptop is treated quite well. 

[ub6424]

Hello @AJ194 

Dirt ?

[AJ194]

Nope, these are the metal contacts for the adapter. 

But the theory about the bad port doesn't explain why the screen is only flickering when windows is started and not in bios. 

The problem started after hard drive was replaced with a second hand SSD. (the previous hard drive was causing the laptop having severe trouble starting from sleep mode). 

Could a faulty SSD cause this as well?

[ub6424]

Hello @AJ194 

(1) Create Windows system <restore point>

How to Create a System Restore Point on Windows 10 or Windows 11

(2) Download and install / update

If an error occurs continue with the next driver

Intel Management Engine Driver

2205.15.0.2623 Rev.W

272.4 MB

Apr 18, 2022

Download

Intel Sensor Hub Components Driver

3.10.100.4101 Rev.A

3.4 MB

Sep 30, 2019

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Intel Serial IO Driver

30.100.1914.3 Rev.A

2.8 MB

Jun 10, 2019

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Intel Thunderbolt 3 Secure Connect

84 Rev.A

90.6 MB

Aug 24, 2021

Download

Intel Management Engine Firmware

11.8.92.4222 Rev.A

11.6 MB

Apr 18, 2022

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(3) Restart Windows

(4) Download and install / update

Intel Video Driver and Control Panel

27.20.100.9416 Rev.W

344.0 MB

Jul 15, 2021

Download

(5) Restart Windows

(6) Test again ...

(7) Please report your results