Monitor won't come on

[NATK30]

My hp M27F monitor won't  come on. I keep getting a check the video cable and video sources message.  All cables are connected and in good condition. 

[Max3Aj]

@NATK30, Welcome to HP Support Community. 

Thank you for posting your query, I will be glad to help you. 
I understand your HP M27f monitor is displaying a “Check the video cable and video source” message even though all cables appear to be connected and in good condition. Let’s walk through some steps to help resolve this issue:

Check Input Source

• Press the Menu button on the monitor.
• Navigate to Input Source and ensure the correct input (HDMI or VGA) is selected based on your connection.

Inspect the Video Cable and Ports

• Unplug and firmly reconnect the video cable (HDMI or VGA) on both the monitor and the PC.
• Try a different HDMI/VGA cable if available.
• Inspect the ports for any bent pins or debris.

Test with Another Device

• Connect the monitor to a different PC or laptop using the same cable.
• If the monitor works, the issue may be with your original PC’s video output.

Check PC Video Output

• If using a desktop, ensure the cable is connected to the graphics card (if present) and not the motherboard.
• Try booting the PC into BIOS (usually by pressing F10, DEL, or ESC during startup) to see if any display appears.

Power Cycle the Monitor

• Turn off the monitor and unplug it from power.
• Wait 30 seconds, then plug it back in and turn it on.

Factory Reset the Monitor

• Press the Menu button → Go to Management → Select Factory Reset. 

I hope this helps. 

Take care and have a good day. 

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Select "Yes" on the bottom left to say “Thanks” for helping! 

Max3Aj

HP Support