Input Signal Not Found - Check the video cable and video source - Display Going to Sleep

[paoloeagle]

I'm working with my MacBook Pro and hp 27f Display connected by the original HDMI cable.

MacBook Pro works perfectly connected to another monitor, but with 27f Display I have continuous message

Input Signal Not Found

Check the video cable and video source

Display Going to Sleep

I tried to use the cable that I use with other monitor, but the issue persists.

[Echo_Lake]

@paoloeagle

Thank you for posting on the HP Support Community.

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

• Did this happen after a recent window or software update?
• Have you made any hardware/software changes?
• What is the product number of your device? Use this link to find it: http://support.hp.com/us-en/document/c03754824

While you respond to that, let's try these steps: 

• Note Before you begin: Turn off the computer.
• And disconnect all connected devices from the computer except the mouse and keyboard. This includes removing thumb drives and camera-type memory cards.

Step 1: Checking the power

Step 2: Displaying a built-in on-screen message

Step 3: Fixing a bad video connection

Step 4: Testing the video connection

Step 4: Connecting the monitor to a different computer

• Use the steps in this document: https://support.hp.com/us-en/product/hp-value-23-inch-displays/7274744/model/10402854/document/c0129... to resolve this issue or to determine if the monitor is defective.

Hope this helps! Keep me posted for further assistance.
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.