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.

Some users experienced this problem and reported that the second monitor displays nothing except the No signal message after sleep.

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 ...

It can be useful to connect an LCD monitor to your computer when working in order to expand and better see your work. However sometimes after booting, the screen goes blank with a "No signal" message ...

If the monitor is still not displaying a signal after firmly reattaching the cable, the problem could lie with the cable, especially if the cable has visible damage.