Change the graphics port.Īre you using a dedicated graphics card with multiple output ports? Try switching to another port. You can also try using a new cable if the old one has issues (bent pins, a short, exposed wire, etc.). If you’re using an older cable standard like VGA or DVI-D, you might want to try a newer alternative like HDMI or DisplayPort. If possible, try to remove the adapter or replace it with another adapter to see if this fixes the issue. Are you using an adapter to switch from one type of input to another? If so, this adapter may be causing issues with the other monitor. Use the buttons on your monitor for cycling through the channels and select the correct input. Monitors with multiple input options need you to manually select which cable or HDMI port you’re using, like HDMI 1, HDMI 2, DisplayPort, and so on. If they do seem well secured, unplug, and plug them in again to be sure. Verify cable connections.Ī loose cable can cause “no signal” errors more often than any other problem. That may be all it needs to recognize the video feed and start displaying it correctly. Some connection types don’t like hot swapping while a different monitor is on.
In the following window, click the Detect button located under the display diagram. To force it to check again, right-click the desktop and select Display Settings from the resulting pop-up menu. Maybe Windows didn’t recognize your second display’s connection. There are several reasons why this happens and plenty of fixes you can try to sort out. It simply means that the display has power, but it isn’t receiving visual data. Multiple Monitor Display Issue: No SignalĪlthough getting no “signal” to your new monitor can cause concern, it’s arguably the easiest problem to fix. Additional monitors suddenly stop working.
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