Monitor Input Signal Not Found

[Riddle_Decipher]

@RussDR

Welcome to HP Forums, 

This is a great place to get support, find answers and tips, 

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)

Keep me posted,

If the information I've provided was helpful, 

give us some reinforcement by clicking the solution and kudos buttons, 

that'll help us and others see that we've got the answers!

Good Luck.

[RussDR]

HI

Thanks for the response, I worked out how to log case with HP support on the internet, have spoken to then, they were extremely helpful. The monitor is being replaced.

Thanks you again

[Riddle_Decipher]

@RussDR

Thank you for the update,

I appreciate your time and efforts, 

I'm glad you found the solution you were looking for,

Thanks for taking the time to update the community,

To thank me for my efforts to assist you, please click the "Thumbs Up" button to give me a Kudos.

And select Accepted as solution to help others find the same solution as you have.

Take care now and do have a fabulous week ahead. 🙂

[MAK11]

I have two fairly new HP 25es monitors and am consistently having problems with them turning off/going to sleep.  This is very disruptive during my work day and I'd appreciate help in fixing it.

Sometime it's both monitors and sometimes just one.  I get the "Input Signal Not Found" error message followed by "check the video cable and video source" message.  Monitor status then shows "inactive".

I've been through the steps laid out in this link - https://support.hp.com/gb-en/document/c00061509#c00061509_sleep but the problems are continuing.  

Can someone offer some help please? 

Thanks.