How to Enable DP Alt Mode in Windows 11: A Complete GuideUpdated 2 months ago
DisplayPort Alternate Mode (DP Alt Mode) allows USB-C ports to transmit video signals to external displays. If your Windows 11 device supports DP Alt Mode, follow these steps to enable it.
Key Highlights: Enable DP Alt Mode in Windows 11
1. Check Hardware Compatibility
Ensure your device and USB-C port support DP Alt Mode (refer to your laptop or motherboard manual).
Use a USB-C to DisplayPort or USB-C to HDMI adapter that supports Alt Mode.
2. Connect the Display
Plug the external monitor into your device using a compatible USB-C cable or adapter.
If your display is not detected, try another port or cable.
3. Enable External Display in Windows 11
Press
Win + Pand select a display mode (Duplicate, Extend, or Second screen only).Open Settings > System > Display and ensure the monitor is recognized.
4. Update Display and USB Drivers
Open Device Manager (
Win + X> Device Manager).Expand Display Adapters and Universal Serial Bus controllers.
Right-click and update drivers for your GPU and USB controllers.
5. Check BIOS/UEFI Settings
Restart your PC and enter BIOS/UEFI (press
F2,F10, orDelduring boot).Look for USB-C or Thunderbolt settings and ensure DP Alt Mode is enabled.
6. Install Manufacturer Software
Some devices require OEM drivers or firmware updates (e.g., Intel Graphics Command Center, Dell/HP utilities).
Visit the manufacturer’s website to download the latest updates.
After these steps, your USB-C DP Alt Mode should work, allowing video output to external monitors.