Monitor going black from bottom upwards then going back to normal

[HGHF]

A couple of days ago my monitor started to go green all over, and then black in a horizontal strip that started at the bottom and now takes up 95% of the screen (almost to the top).  The black lasts about 2 or 3 seconds and then goes back to the normal screen (though still green) for 2 or 3 seconds.  I've updated the display graphics and restarted the computer several times.  What's up and can I fix it?  Thanks

[Nal_NR · Accepted solution]

Hi @HGHF,

Welcome to the HP Support Community. 

I'd be happy to help you! 

I understand that you are having issues with the Monitor.

I appreciate your efforts in trying to resolve this issue by performing the necessary troubleshooting steps.

The issue you're describing with your HP Pavilion 22xi 21.5-Inch Diagonal IPS LED Backlit Monitor seems to be a hardware-related problem, possibly with the monitor itself or the connection between the monitor and your computer. Here are some troubleshooting steps you can follow to identify and potentially resolve the issue:

Step 1: Check Cable Connections

Ensure Secure Connections:

• Make sure the video cable (HDMI, DVI, or VGA) is securely connected to both the monitor and the computer.
• Try disconnecting and reconnecting the cable to ensure a good connection.

Inspect the Cable:

• Check the video cable for any visible damage or wear. If possible, try using a different cable to see if the problem persists.

Try a Different Port:

• If your monitor and computer have multiple video ports, try connecting the monitor to a different port.

Step 2: Test with Another Computer or Monitor

Connect the Monitor to Another Computer:

• If you have access to another computer, connect the monitor to it to see if the issue persists. This can help determine if the problem is with the monitor or the computer.

Connect a Different Monitor to Your Computer:

• If you have another monitor, connect it to your computer to see if it experiences the same issue. This can help determine if the problem is with the computer or the monitor.

Step 3: Reset the Monitor

1. Factory Reset:
   • Use the monitor's on-screen display (OSD) menu to perform a factory reset. This option is usually found under the settings or menu button on the monitor.

Step 4: Check for Firmware Updates

1. Monitor Firmware:
   • Check the HP support website for any firmware updates for your monitor. Follow the instructions provided to update the monitor firmware if an update is available.

Step 5: Adjust Display Settings

Color Calibration:

• Sometimes incorrect color calibration settings can cause display issues. Use the display settings on your computer to adjust the color calibration.

Refresh Rate:

• Ensure the refresh rate is set correctly. Go to Settings > System > Display > Advanced display settings and make sure the refresh rate is set to the recommended setting for your monitor.

Step 6: Test for Overheating

1. Ventilation:
   • Ensure the monitor is well-ventilated and not overheating. Overheating can cause display issues.

If the above steps do not resolve the issue, it is possible that the monitor has a hardware fault. Contact HP support for further assistance for service/repair options. 

Hope this helps! Keep me posted for further assistance

Please mark this post as “Accepted Solution” if the issue is resolved and if you feel this reply was helpful click “Yes”.