Monitor says 'No signal detected' when connected to computer
The cable connecting your monitor to your computer is loose, damaged, or plugged into the wrong port. Unplug both ends of the cable, wait 30 seconds, and plug it back in firmly. This fixes it immediately. If that doesn't work, your computer isn't detecting the monitor and needs a driver update.
A 'No Signal' message means the monitor and computer aren't talking to each other. The cable connection is the problem. Sometimes the cable is loose, kinked, or the plug got accidentally pulled out partway. If the cable is fine, the issue is a missing or outdated driver that needs to be reinstalled.
- ✓Have access to the back of both your monitor and computer
- ✓If possible, have a spare video cable of the same type ready to test
- ✓Note any recent power outages, computer crashes, or system updates that happened before this started
Fix-IT-Bot will walk you through each step, just tap, no typing needed.
Skip, I just want a technicianCommon mistakes to avoid
- Thinking the monitor is broken when it's just the cable. Try the monitor with a different computer first to confirm.
- Plugging the cable into the motherboard's video port instead of the graphics card port. If your computer has a graphics card, use that port.
Signs you need professional help
- If you've checked the cable, tried different ports, restarted the computer, and the monitor still shows no signal, the graphics driver is corrupted or the graphics card is failing. Give us a call and we can run a full hardware diagnostic and reinstall your graphics driver remotely.
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