Sometimes you might not hear any audio from your computer after you have connected (added) another screen to your computer. This tutorial will help you solve that issue.
1- After you have connected your two screens using a cable, click F4 (depending on the keyboard), on the right side of your desktop you will see the following (see figure below), then choose “Extend”.
2- Now you can drag the programs from the main screen to the second screen with out any problem. But if after you have connected your second screen, there is no audio output from your computer, follow instructions below.
3- Go to your control panel and choose “Hardware and Sound” and then click “Sound”, choose the audio output device you want to use and then click “Set Default” and then click “OK” (See figure below). Now your audio will work without any issues!!!
