Monitor Input Signal Not Found

[RTB27]

The screen goes black and the Monitor Status message appears at the top.

All inputs are listed as Inactive and after a short period of time an Input Signal Not Found appears.

I know the machine is connected as power delivery still works.

I have tried the following things and it has made no difference:

Switching inputs with different cables (USB-C & HDMI)

Manually selecting the different inputs

Not that the age overly matters but I only got the monitor a few days ago.

I tried chatting the support desk (which was the US dept) and I was told to call the GB support line instead. Case #[Personal Information Removed]

[Nirvana_95]

Hi @RTB27 

Welcome to the HP Support Community. 

Thank you for posting your query, I'll be more than glad to help you out  

As I understand you are getting the message - "monitor input signal not found",

Don't worry as I'll be glad to help, however, to provide an accurate resolution, I need a few more details: 

Did you know holding the power button for 20 seconds or more either releases or locks the OSD menu?

Have you attempted to hold the button after receiving the message-"On Screen Menus are locked"?

Does the message appear on an alternate monitor?

While you respond to that, I recommend you check with another monitor and if the issue doesn't occur on the other monitor, follow the below steps:

These messages are normal when the computer truly goes into sleep mode or loses the video signal (such as when the computer is turned off). However, if the monitor displays any of these messages when the computer should be displaying video, something is wrong.

If you suspect the monitor should be displaying an image from the PC instead of the message, use one of the following sections that match how the monitor behaves after the computer is powered on:

• Windows opens, but after a while the monitor displays the message
• Startup screens display, but the message opens before the Windows desktop opens
• The message is the only item that displays on the screen

CLICK HERE FOR MORE STEPS AND INSTRUCTIONS.

(By the end of this article all the issues should be resolved)

Hope this helps! Keep me posted. 

Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution. 

Click the “Yes" on the bottom right to say “Thanks” for helping. 

[Nirvana_95]

Hello!

We haven’t heard from you in a while, this post is with reference to the thread you had created at your  

friendly neighborhood (HP Support Community). 

I would like to know if the resolution we provided worked for you? If you have any other queries, feel free to reply at any time, and thank you for being a valuable member of our HP Family. 

If you would like to thank us for our efforts to help you, go to the public post & give us a virtual high-five by clicking the "Thumbs Up" icon below, followed by clicking on the "Accept as solution" on my public post. 

Have a great day ahead! 

[Nirvana_95]

Hi @RTB27

I hope you are doing good.

We reached out but never heard back. Do you still need assistance? Let me know if there is anything else you need assistance with.

Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution. 

Click the “Yes" on the bottom right to say “Thanks” for helping. 

Have a great day! 

Thanks!