27f 4k is flickering

[carlito114]

Hello there,

my monitor starts flickering now and then out of nowhere, and I don't know where this is coming from. This always goes away after some time, but recently it got worse. Now content from past windows is "stuck" on the display, meaning I can still see it overlaying over content from different windows. 

I tried different HDMI cables, different HDMI Inputs and also pulling the power cable and reconnecting it in every possible combination. 

How can I fix this? Is this repairable? 

Cheers

[Garp_senchau]

@carlito114, Welcome to HP Support Community,

Thank you for posting your query; I’m here to help by guiding you through steps to resolve this issue

• Restart your Mac and reset the PRAM/NVRAM by holding Option + Command + P + R when it boots.
• Go to System Preferences > Displays, and make sure your resolution is set to the monitor's native setting (3840 x 2160). Try lowering it if needed.
• Make sure macOS is up to date and check if there are any firmware updates for your monitor.
• Try connecting your HP monitor to a different device (like another laptop). If the issue still happens, the monitor may be the problem.
• Make sure your monitor is plugged directly into a wall outlet (not a surge protector) and the power cable is secure.

Also, you may refer to this guide: HP Notebook and All-in-One PCs - Troubleshooting screen issues (Windows 11, 10) | HP® Support

I hope this helps.

Please feel free to reply here if you have any questions or if you need further clarification on any of the steps. 

Take care and have a good day. 

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Regards,