Screen flickering

[Frankfans]

 

 my screen just started flickering all of a sudden  

[ub6424]

Hello @Frankfans 

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

(1) Double check with external monitor connected via vga/hdmi cable.

Do you have the same error pattern (flickering) on the external monitor ?

- Shutdown notebook (No Sleep / No Hibernate)

- Power off external monitor

- Connect vga/hdmi cable

- Power on external monitor

- Power on notebook

(2) Please report your results

[Frankfans]

I used a hdmi cable and connected it to my tv and it's OK on it no flickering or pattern 

[Frankfans]

I used a hdmi cable and connected it to my tv and it's OK on it no flickering or pattern 

 

 

[ub6424]

Hello @Frankfans 

This test showed that the GPU is okay...

In the simplest case the internal display cable behind the screen is no longer seated correctly. It has come loose slightly.

Recommendation and solution

In your case: Service is required !
- The computer should be disassembled and checked.
- [Always recommended] Thermal paste for CPU GPU and bridges should be renewed
- [Always recommended] The function of the fan(s) must be checked

- The internal display cable that goes from motherboard to screen has to be checked or replaced

- The screen has to be checked or replaced

- Short circuit test

- General cleaning ...

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