A monitor connected to an input cable, such as an HDMI, Display Port or USB-C cable,
can output sound through its own built-in speakers (if equipped) or an external device via the audio port.
The types of input ports and the availability of built-in speakers may differ depending on the product model.
Please refer to the product user manual or visit our homepage for detailed information.
Try this
Is your monitor equipped with built-in speakers?
➔ Refer to your product user manual to verify whether your monitor has built-in speakers.
If your monitor does not have built-in speakers, sound will not be heard unless you connect your monitor to an external speaker, such as headphones.
If your monitor is equipped with built-in speakers, adjust the monitor sound settings.
Locate the joystick button on the monitor frame and move it to the left/right to adjust the volume.
How to test for sound on your Smart Monitor
Smart monitor [Sound self-diagnosis]: Press the settings button [ ] on the remote. Then, select the settings icon [
or
] on the screen.
Select [Support] → Select [Sound self-diagnosis] and test the speaker volume.
If there is no sound issue, try checking the volume of the PC or other external devices.
On your PC, verify whether Windows sound output is set to the monitor.
Check the Windows sound output settings
Check whether sound is muted. Ensure that the sound is set to an appropriate volume.
To adjust the volume: Click the sound icon on the right side of the task bar,
check the currently used audio device and use the slider to adjust the volume.
Click the [Speaker] icon on the right side of the taskbar. Click the icon for [Select a sound output].
Check whether the output device is set to [LG monitor].
How to check the volume of specific apps on Windows 11
Right-click the [Speaker] icon on the right side of the taskbar. Select [Open volume mixer].
If [Apps] have been muted, click [Reset] to “Reset sound devices and volumes for all apps to the recommended defaults.
※ In Windows 10, open up [Open volume mixer] and use the slider to increase the volume of apps under [Application].
If there is no sound output from the PC’s built-in speakers or the external speaker (e.g. headphones)
This is more likely to be a PC sound driver issue than a monitor issue.
Delete the sound driver and reinstall it. (Follow the instructions on the homepage of your PC manufacturer.)
How to reinstall the sound driver from Device Manager
Search for [Device Manager] using the taskbar search box and open the control panel.
In the dropdown for [Sound, video and game controllers], select [Realtek(R) Audio] and click [Uninstall device].
In the verification message that appears, select [Uninstall] and restart Windows.
Verify whether sound is heard.
※ Please check the specifications of your specific product as sound devices differ by manufacturer.
(e.g. [Conexant HD Audio] could be installed on your PC.)
How to download and install the sound driver
The latest version of the sound driver can be downloaded from the homepage of its manufacturer.
Drivers can be installed on LG PCs using [LG Update program].
By using [LG Update program], device drivers that are suitable for your PC system can be automatically installed.
Enter [Microsoft Store] in the taskbar search box and run the app.
Search for the [ LG Update Installer ] app in Microsoft Store.
Click the [Get] button on the [LG Update Installer] download page and execute the app.
Check the input settings of your monitor using the joystick button.
Press the joystick button to enter the main menu.
From [Main Menu], use the joystick button to select [Input] settings.
Check the [Input List], which shows all the currently connected inputs.
Check whether the cable connecting the monitor and PC (HDMI, DP, USB-C) is correctly plugged i.n
Also check for any signs of damage, such as bent pins.
Look for dust and dirt that may be sticking to the pins.
If you suspect that the cable is faulty, connect a different cable and test for sound.
Ensure to replace the faulty cable with a genuine one.
Did you use the cable enclosed with the monitor purchase?
Using a cable that is not suitable for the specifications of the product may lead to
various problems such as screen noise, a blank screen, and more.
※ If an HDMI-to-DVI cable is used, only video signals will be transmitted, not audio.
This guide was created for all models, so the images or content may be different from your product.
