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Monitor turns off and shows "Input signal not found" message

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HP 27" Curved Monitor

My monitor goes black in the middle of when I am using it and shows the following error: "Input signal not found - check the video cable and video source. Display going to sleep"


I have to turn it off and back on again to get it back on. It's not a case of my laptop going to "sleep" as I often in the middle of typing when this happens. It has also turned off in the middle of webcasts when I am presenting and other inopportune times.


I have checked and rechecked the cables etc. and everything is functioning correctly.


Can someone please help identify why this may be happening and what can be done to fix the issue?

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Welcome to HP Support Community.


Please download the Monitor driver from this Link: and let me know how it goes


Thank you and have a great day 😊

If the information I've provided was helpful, give us some reinforcement by clicking the "Solution Accepted" on this Post and it will also help other community members with similar issue.

I Am An HP Employee

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