Lenovo ThinkVision LT2423 24-inch FHD LED Backlit LCD Monitor - Manual (Page 9)

5. Connect the audio cable to the video port on the back of the computer.
6. Power on the monitor and the computer.
7. Install the monitor driver, download the driver of the corresponding monitor model
from the Lenovo Website http://support.lenovo.com/LT2423wC, and then click on
the driver and install it following the on-screen instructions.
Chapter 1. Getting started 1-5