• ×
    Information
    Need Windows 11 help?
    Check documents on compatibility, FAQs, upgrade information and available fixes.
    Windows 11 Support Center.
  • post a message
  • ×
    Information
    Need Windows 11 help?
    Check documents on compatibility, FAQs, upgrade information and available fixes.
    Windows 11 Support Center.
  • post a message
Guidelines
Are you having HotKey issues? Click here for tips and tricks.
Locked

‎10-15-2024 05:44 PM

HP Recommended
Product: HP ZBook Power 15.6 inch G9 Mobile Workstation PC (4T4Z8AV)

Hi,

I’m using an HP ZBook G9 connected to an HP Thunderbolt Dock 120W G2, with two Acer KA242Y monitors. I have a total of three screens (the laptop display plus the two external monitors).

I've been experiencing frequent flickering and black screens on the Acer monitors. What could be causing this issue?

Additionally, would upgrading my dock help resolve the problem? I've noticed that some of my colleagues are facing similar issues.

Thank you for your assistance!

Category:
2 REPLIES 2

‎10-15-2024 05:52 PM

HP Recommended

@jayc0nn0r 

 

Does your machine have a video card or only iGPU ? Do you also use the dock to charge your machine ? Do you also use the dock for other USB devices ? Looks like to dock does not have enough power to work on all of them.

 

Regards.

BH
***
**Click the KUDOS thumb up on the left to say 'Thanks'**
Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.




1 person found this reply helpful
Was this reply helpful? Yes No

‎10-16-2024 03:03 PM

HP Recommended

Huge discussion on random monitor flickering is also here: https://h30434.www3.hp.com/t5/Notebook-Video-Display-and-Touch/External-monitors-often-going-off-and...

 

It seems that universal solution was not found yet. It is recommended to open case at hp support, to let them know that they have a problem on their docking stations.

Particular solutions:

- use high quality shieded cables (some reported, that it helps)

- check firmware on docking station and also latest drivers

- change refresh rate on monitors from 59.xxHz to 60Hz or vice versa

- use different docking station (Lenovo for example)

Was this reply helpful? Yes No
Warning
Be alert for scammers posting fake support phone numbers and/or email addresses on the community.
If you think you have received a fake HP Support message, please report it to us by clicking on "Flag Post".
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation.
Didn't find what you were looking for? Ask the community
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.