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Why is my laptop not displaying external monitors through the USB-C port with a Thunderbolt 3 adapter?

< 1 min read

  1. Check cable connection
    Ensure the HDMI, DisplayPort, or VGA cable is securely connected to the correct port on the external monitor.

  2. Check USB-C port
    If an external monitor doesn’t work via USB-C, it may depend on whether the laptop’s USB-C port and the Thunderbolt 3 adapter are compatible.

  3. Update drivers
    Update your graphics driver to ensure you have the most up to date version and check your monitor specifications to ensure the adapter and monitor are compatible.

  4. Change Mode Settings
    Check if you need to change the settings on the external monitor and laptop. This could depend on the laptop’s display mode settings.

  5. Check External Monitor Power
    Make sure that the external monitor is powered on. This could depend on separate power sources depending on the monitor.

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