How to connect an external graphics card using the Thunderbolt port

Scenario 1: Connect the computer to an external graphics card and a display at the same time

1. The following diagram demonstrates how to connect your computer to an external graphics card and a display.

   

2. Visit the official website of the external graphics card to download and install the driver of the external graphics card.
3. Open the app that you want to run on the external display. To run power-intensive apps such as games, click Second screen only on the Project screen.

Scenario 2: Connect the computer to an external graphics card

1. The following diagram demonstrates how to connect your computer to an external graphics card.

   

2. Visit the official website of the external graphics card to download and install the driver of the external graphics card.
3. To run an app using the connected external graphics card, disable the use of the discrete graphics card if your computer is equipped with one. To do this:

(1) Right-click the Windows icon then click Device Manager.

(2) Expand Display adapters, right-click the name of the discrete graphics card (for example, NVIDIA GeForce MX250), and select Disable.

 

• If your computer is equipped with NVIDIA MX250 discrete card and has been connected to a NVIDIA external graphics card using Thunderbolt ports, visit the following website (https://www.geforce.com/drivers) and download the latest version of DCH driver.

  

• If you cannot open the NVIDIA control panel, download the corresponding NVIDIA control panel program from the following address: https://www.microsoft.com/en-gb/p/nvidia-control-panel/9nf8h0h7wmlt?activetab=pivot:overviewtab