External display not working

[JoshSm]

Hi there

Ive been using an external monitor via USBC port on my laptop. It stopped working a couple of months after i bought it, but was able to get it going again via VGA to USBC connector. It then started working again with the original USBC cable and now is not recognising any cable at all. If i plug the monitor into another laptop with same cables it is fine, so isolated to laptop.

I've read some forums and took the initiative to update BIOS and graphics card driver. Also stopped USBC ports from going to sleep. None of this has resolved. Can i get some help?

Thanks

Josh

[ub6424]

Hello @JoshSm 

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 display problem ...

(1) Run    msinfo32

- Select <System Summary>:

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

OS Name

Version

System Model

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

Processor

BIOS Version/Date

(2) Please report your results

[JoshSm]

Thanks

OS Name Microsoft Windows 11 Home

Version 10.0.22000 Build 22000

System Model HP Spectre x360 Convertible 14-ea0xxx

System SKU 2G2E8EA#ABU

Processor 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz, 2419 Mhz, 4 Core(s), 8 Logical Processor(s)

BIOS Version/Date AMI F.27, 14/06/2022

[ub6424]

Hello @JoshSm 

(1) Create Windows system <restore point>

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

(2) Download and install / update

Intel Chipset Installation Utility and Driver

10.1.18800.8277 Rev.D

0.5 MB

Sep 22, 2021

Download

Intel Dynamic Tuning Processor Participant Driver

8.7.10700.22502 Rev.D

15.1 MB

Sep 22, 2021

Download

Intel Integrated Sensor Solution Driver

3.1.0.4475 Rev.D

0.7 MB

Sep 22, 2021

Download

Intel Management Engine Interface (MEI) Driver

2120.100.0.1085 Rev.D

20.1 MB

Sep 22, 2021

Download

Intel Serial IO Driver

30.100.2129.8 Rev.D

0.8 MB

Sep 22, 2021

Download

Intel Thunderbolt Controller Driver

1.41.1193.0 Rev.D

18.5 MB

Sep 22, 2021

Download

Intel Gaussian and Neural Accelerator Driver

2.00.00.1097 Rev.D

0.6 MB

Sep 22, 2021

Download

(3) Reboot Windows

(4) Download and install / update

Intel High-Definition (HD) Graphics Driver

30.0.100.9864 Rev.D

475.3 MB

Sep 22, 2021

Download

(5) Reboot Windows

(6) Test <external display> again

(7) Please report your results

[JoshSm]

Hi there

Installed all as prescribed following sequence etc, including reboots. Despite this, still no monitor being detected with three different cables (that work on other laptops, as does the monitor).

Next?

Josh

[ub6424]

Hello @JoshSm 

(1) Download and install

HP PC Hardware Diagnostics Windows

1.8.1.0 Rev.A

339.2 MB

Mar 10, 2022

Download

- Perform <all> tests

(2) Please report your results

[JoshSm]

Hi there

All tests passed.

I have also done a full restore of my PC and wiped all applications and data, the problem is still there. The port recognises my phone but doesn't recognise any monitors.

What's next?

Thanks

Josh

[ub6424]

Hello @JoshSm 

(1) USB Type-C connector should provide DisplayPort output

User Guide

Page 3

Page 4 Chapter 2 Getting to know your computer

(2) You have already completely reinstalled the system. Since it still does not work, there is a technical defect.

 HP warranty valid -> Contact HP Support for service repair

HP warranty expired:

If you can't do that, you should have it serviced by a professional notebook (chip level) repair store.

Good luck