Monitor goes black for a second then comes back
The monitor cable is loose or damaged. Unplug it from both ends and plug it back in firmly. If that doesn't work, try a different cable.
A loose or damaged video cable between your computer and monitor causes the signal to drop briefly, making the screen go black. When the cable reconnects momentarily, the image comes back. The cable connection can look fine but be damaged inside or just barely loose. Reseating the cable by unplugging and firmly reconnecting it solves this.
- ✓Have access to the back of both your monitor and computer
- ✓Note whether the blinking happens at random times or seems related to moving the cables
- ✓If available, have a spare video cable of the same type ready to test with
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 cable is fine because the connections look tight. Loose connections can look correct.
- Not checking the cable for damage inside. Damage is sometimes hidden from view.
- Replacing the monitor instead of the cable. Most blinking is just a faulty cable, not a broken monitor.
Signs you need professional help
- If you've tried reseating the cable, tested with a new cable, and blinking still happens, give us a call and we'll sort it out.
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