Showing results for 
Search instead for 
Did you mean: 
The HP Calculator Community Message Board is moving. While we prepare for the move, we are unable to accept new postings. During the move, you can look for help from other users by visiting . Or if you need technical support for your calculator visit: HP Calculators. .
New member
1 0 0 0
Message 1 of 2
Flag Post

My HP monitor going black.

HP Recommended

HP Monitor LM9 14AA


My monitor keeps going black. If I take the  kettle lead out of the charger box and put it back in again, usually several times, the monitor starts working again. I'm worried at some point that the cable will not working altogether.  I'm not sure if it's a problem with the kettle lead or charger box. Do I need to buy an HP charger & kettle lead or can I buy an ungeneric one and would that solve the problem?


Any advice gratefully received.

Tags (1)
HP Support Agent
HP Support Agent
29,155 21,825 1,961 2,158
Message 2 of 2
Flag Post
HP Recommended



I reviewed your post and I understand that the monitor goes black sometimes.


Don’t worry, I assure you I will try my best to get this sorted.


Do you mean that the monitor is not getting power? Do you see that power light on the monitor when this happens? If yes, then I recommend you update the graphics driver on your computer and check if it helps.


If no, then I recommend you contact support as it might be an issue with the power adapter or the connecter on the monitor itself.


Here is how you can get in touch with support.


1)Click on this link –

2)Select the product type.

3)Enter the serial number of your device or select let HP detect your product option.

4)Select the country from the drop-down.

5)You should see the HP phone support number or Chat option listed.


Let me know how it goes and you have a great day!


P.S: Welcome to the HP Support Community 😊


If you wish to show appreciation for my efforts, mark my post as Accept as Solution. Your feedback counts!



Stay Home – Stay Safe

I am an HP Employee

Was this reply helpful? Yes No
Warning Be alert for scammers posting fake support phone numbers and/or email addresses on the community. If you think you have received a fake HP Support message, please report it to us by clicking on "Flag Post".
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation