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hp monitor not displaying and keeps going to sleep - using HP Pavillion

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HP Pavilion Power Desktop - 580-015xt
Microsoft Windows 10 (32-bit)

I have an HP 27 ES MONITOR and a HP Pavilion Power Desktop - 580-015xt computer


I have windows 10 OS



I have an NVIDEA Graphics Card


My computer shows Input sinal not found

check the video cable


monitor going to sleep


I have an HDMI cable from monitor to desktop


This has been happening sporadically. Normally, I just unplug everything and reboot and it works  but not this time


No new drivers or updates installed in this computer.  I do not know why the monitor will not show


Please advise





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Welcome to the HP Forums 🙂 I would like to take a moment and thank you for using this forum, it is a great place to find answers. For you to have the best experience on the HP forum, you could also visit our HP Forums Guide for First Time Here? Learn How to Post and More.


As I understand you have the message - No input signal 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 check if the resolution is too high for the monitor? did you try reducing the resolution and check if it works?

Does it work with an alternate monitor?


While you respond to that, here's what you need to do:

Messages display on the monitor when the computer starts, shuts down, or enters suspend mode. Some messages that can display are:

  • Going to Sleep
  • No input signal
  • No signal detected
  • Signal Out of Range
  • Sync Out of Range
  • Cable disconnected
  • Check cable connection
  • Warning-PC entering power save mode

    ... or similar.

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:


(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.

I am an HP Employee

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