Issue Description
External displays may not be recognized when connected to a Windows PC.
Common Causes
- Faulty cable or port
- Outdated graphics drivers
- Incorrect display settings
Step-by-Step Solution
Step 1: Check Physical Connections
- Disconnect and reconnect cable
- Try a different HDMI/DP port
- Test cable with another monitor
Step 2: Detect Display Manually
- Open Settings → Display
- Click Detect
Step 3: Change Projection Mode
- Press Windows + P
- Select Duplicate or Extend
Step 4: Update Graphics Driver
- Open Device Manager → Display adapters
- Update GPU driver
Explore Further
- Test monitor on another PC
- Reset display settings
Prevention & Best Practices
Use quality cables and keep display drivers current.