Monitor says No Signal but the computer is running
The video cable connecting your computer to the monitor has come loose or failed. Unplug the cable from both the monitor and computer, wait five seconds, and plug it back in firmly. This solves the problem.
The cable carrying your video signal from the computer to the monitor is the weak link. It can come loose from vibration, get bent, or fail over time. If the cable isn't plugged in firmly, the monitor receives no signal and shows 'No Signal' even though your computer is working fine. The fix is as simple as reseating the cable.
- ✓Have access to the back of both your monitor and computer
- ✓If possible, have a spare video cable of the same type available to test with
- ✓Note whether the monitor worked previously or if it has never shown an image
Fix-IT-Bot will walk you through each step, just tap, no typing needed.
Skip, I just want a technicianCommon mistakes to avoid
- Assuming the monitor is broken when it's just the cable that needs reseating. Always try this first.
- Plugging into a secondary video port on a desktop computer when the primary port has the power.
- Forgetting that newer cables look very similar but aren't always compatible. Check the connector type.
Signs you need professional help
- If you've tried reseating the cable, tested with a different cable, and tried different ports and it still shows no signal, give us a call and we'll sort it out.
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