Flickering, Black screen, Artifacts on External Monitor

[Rasoir0591]

I have similar issue as described here:
https://h30434.www3.hp.com/t5/Gaming-Notebooks/HP-OMEN-16-Black-artifacts/td-p/8343419/highlight/tru...
I have latest BIOS and GPU drivers (and other drivers), my laptop few weeks ago backs from service in Hungary - had heating problem but after diagnostic they say all hardware working fine. I tested internal display with OCCT and those strange things not happends, tested external monitors (have two) with other laptop.
Support on messanger couldn't help me.
Does anyone have a solution or I should asking for replacement this model for similar with Intel and Nvidia?

[sandytechy20]

@Rasoir0591

Welcome to the HP support community.

I understand that your notebook display is flickering, I am glad to assist you.

Update the Bios, chipset, and drivers using HP Support Assistant.

Download and run the HP Support Assistant from this Link: Click here

• HPSA will automatically search for all the latest drivers for your Notebook
• Click My devices in the top menu, and then click Updates in the My PC or My notebook pane.
• 
• Click Check for updates and messages to scan for new updates.
• 
• Review the list of updates. Updates with a yellow information icon are recommended. Updates with a blue information icon are optional.
• Click the update name for a description, version number, and file size.
• Select the box next to any updates you want to install, and then click Download and install.

Also, ensure Windows is up to date.

• Select the Start  button, and then go to Settings  > Update & security  > Windows Update , and select Check for updates. If Windows Update says your device is up to date, you have all the updates that are currently available

Let me know how it goes.

To thank me for my efforts to help you, please mark my post as an accepted solution so that it benefits several others.

Cheers.

[Rasoir0591]

I have done all those things with support including diagnostic, enchanced diagnostic, occt and furmark test. All is good. After I connect external monitor I get black screens and flicekring. I've tested 4 different external monitors, all FullHD 1080p, 60Hz - LG, iiyama x2, dell on all of them gets the same. Looks like guy in attached thread have right it's config problem.

@edit

It's not built in laptop display! It's external monitors flickering.

[sandytechy20]

@Rasoir0591 

This might require one on one interaction to fix the issue, I am sending you a private message with the steps to talk to HP support.

Please check the mailbox icon at the top-right corner of this screen.

I hope this helps resolve this issue completely.

If this helps, please mark the public post as an accepted solution so that it benefits several others.

Cheers