Windows doesn't detect second monitor when plugged in
The cable might be loose, Windows didn't detect it, or the graphics driver needs an update. Checking the cable and using Detect Displays fixes this for most people.
Windows stops detecting a second monitor when the cable is loose, the port is inactive, the graphics driver is outdated, or Windows didn't automatically recognize it. We'll check the cable, manually detect displays in Windows, and update your graphics driver.
Risk: Low
⏱ 10-15 minutes
Beginner
⚡ Before you start
- ✓Make sure both monitors are powered on
- ✓Know which type of cable you're using (HDMI, DisplayPort, USB-C, VGA)
- ✓Have the graphics driver installation file ready or download access
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 the cable is just loose. Always check the cable first.
- Plugging into the wrong port. Some laptops have video ports that are disabled in BIOS.
- Not restarting after updating the graphics driver. The driver update needs a restart to take effect.
Signs you need professional help
- If you've tried different cables, different ports, updated the driver, and the monitor still isn't detected, call us — the monitor port on your computer might be damaged.
Book a technician
We can fix most issues remotely in 15 minutes. Book your weekend slot and we handle the rest.
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