There are several possible causes of “no signal” on a computer monitor, including: Loose or disconnected cables: A loose or disconnected cable between the monitor and computer can cause the ...

If there is No Signal on monitor on a new PC, but the CPU is running, you need to take the following steps to resolve the issue.

My Acer x263w displays "No Signal" right in the middle of the screen, unmoving too, when my Win 7 x64 PC is asleep. It is connected to an ATI 5450 chipset video card via HDMI. I have 2 other ...

On macOS, go to “System Settings” > “Displays” and hold Option to reveal the “Detect Displays” button. Make sure the correct ...

Your computer's display drivers are responsible for sending the refresh signal to the monitor so it can keep updating your image.