This is not a monitor hardware issue. The act of disconnecting the monitor from the video card just forces the operating system to re-initialize the handshake. This is an operating system video card setting issue. Please repost the issue on this board. Include the following data;
Title = System Model, Operating System, Video Card, Short issue description
Body = Complete issue description. Any troubleshooting you have done

Hello Dell-Chris M

My apologies if I have confused anyone.

I don't  disconnect the computer and monitor in any way . The computer is still running when I use the Power Save Mode which is situated  within the bottom right hand corner of the monitor frame. It only closes the monitor screen and all I do is press the lit button to close and open . It is used to save energy/electric when the screen is not in use.

The monitor and computer are still connected.

I have no problem with the actual monitor  or my video/graphics card.

Kind regards

Joe.

So an operating system user log in issue versus a hardware issue. The users out here will need to chime in with suggestions.