It could happen when you log back to your desktop after remotely logging into your desktop and logging off.
What happened to me was I logged into my office desktop from home and logged off. Then I came to work and when I logged in to my desktop with dual monitors, I saw the above message on the second monitor. Just shutting down the desktop and restarting worked!
what is the display resolution for a CGA monitor?
monitor is an output (display) device
monitor
LCD Monitor
Pictures on the display screen(monitor) are made up of
There is no difference. A LCD Monitor (Liquid Crystal Display) is a type of VDU (Visual Display Unit).
A Function of a monitor is to display the output results
Your monitor/display system.
LCD monitor
A TFT monitor
VDU is a term used to describe a visual display device for a computer. For example, a flat panel display, monitor, and a projector are all examples of VDUs. VDU is most commonly used to describe a standard CRT monitor.
A computer monitor is hardware. It only provides for display.