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The HP 2310 monitor randomly turns off and on during normal use. The screen goes black for a few seconds and then turns back on. remains blank or displays no image even though it is powered on.
Symptoms
Monitor screen remains black or blank, monitor goes off and on.
Power LED does not turn on.
Power LED is on, but no image is displayed.
Monitor does not display the computer startup screen or Windows desktop.
No on-screen message appears when the video cable is disconnected.
Product
HP monitors
Computers connected using HDMI, DisplayPort, or USB Type-C video connections
The issue can be caused by one or more of the following:
No power supplied to the monitor.
Faulty AC outlet or power cord.
Loose or damaged video cable.
Damaged video port on the computer.
Unsupported display resolution.
Faulty monitor or computer video hardware.
Troubleshooting Steps
1: Verify Monitor Power
Turn off the computer.
Disconnect all external devices except the keyboard and mouse.
Disconnect the monitor's video cable.
Ensure the monitor power cable is securely connected to a working AC outlet.
Press the monitor power button.
If the power light does not turn on:
Verify the AC outlet is working.
Connect the monitor to another power outlet.
Try a different HP power cord.
If the power light still remains off, the monitor may require repair or replacement.
If the power light turns on, continue to the next step.
2: Check the Monitor Display
Connect the video cable between the computer and monitor.
Turn on both the computer and monitor.
Wait approximately 10 seconds.
Disconnect the video cable while the monitor remains powered on.
If the monitor displays a "No Signal" or similar on-screen message, the display panel is functioning correctly. Continue with video connection troubleshooting.
If the monitor remains blank, continue to the next step.
3: Inspect the Video Connection
Disconnect the video cable from both the monitor and computer.
Check the HDMI, DisplayPort, or USB Type-C ports for physical damage.
If another compatible video port is available, connect using that port.
Replace the video cable with a known working cable.
Use cable adapters only when necessary.
If the issue persists, continue with further testing.
4: Verify the Display Resolution
If the monitor displays the startup screen but not Windows:
Turn on the computer.
Press the F4 key repeatedly when the first startup screen appears.
After Windows loads:
Right-click the desktop.
Select Display settings.
Choose the monitor's recommended display resolution.
Note:
If the recommended resolution is unavailable, temporarily select 1024 × 768.
Install the latest video driver for the computer if additional display resolutions are required.
After applying the new resolution:
Select Keep changes if the display appears correctly.
Restart the computer and verify that Windows displays normally.
5: Test the Monitor with Another Computer
Connect the monitor to a different computer using a different video cable.
Verify whether the monitor displays normally.
If the monitor works on another computer, the original computer's graphics hardware or video driver is likely causing the issue.
If the monitor remains blank on another computer, the monitor likely requires repair or replacement.
Check
Disconnect USB drives, memory cards, and other external devices before troubleshooting.
Use the monitor's recommended display resolution whenever possible for optimal image quality.
A monitor that displays an on-screen message after disconnecting the video cable generally indicates the display panel is functioning correctly, and the issue is likely related to the video connection or computer configuration.
