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[LG Monitor] How to Fix No Sound Issues: Causes, Checks & Fixes

If there’s no sound coming from your monitor, first check the product specifications to see if it has built-in speakers. If your monitor has built-in speakers but you still hear no sound, check the signal cable connections (HDMI, DP, USB-C) and your Windows sound output settings. If the issue persists, contact LG Customer Support for further assistance.

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TroubleshootingMonitors

What to Check First

  1. The monitor may not have built-in speakers, or the volume may be muted.
  2. The HDMI, DP, or USB-C signal cable connecting the PC and monitor may be damaged or not securely connected.
  3. The Windows sound output device may be set to a device other than the monitor.
  4. Audio may not work due to cable version or compatibility issues between the monitor and the connected device (such as a PC).
  5. 1.Go to the LG website, click the Search (magnifying glass) icon at the top right, enter your model name, and press Enter.
  6. 2.Select the product image and check the Specifications to see if speakers are listed.
  7. Move the joystick button on the bottom of the monitor left or right to adjust the volume and make sure it is not muted.
  8. If sound plays when external speakers or earphones are connected to the back of the monitor, your monitor likely does not have built-in speakers.
  9. Make sure the signal cable connecting the PC and monitor is securely connected. If the cable appears damaged, try a different cable to see if sound plays.
  10. We recommend using an HDMI 2.0 or DP cable that supports 4K at 60 Hz. Audio may not work due to cable version or compatibility issues.

Why This Can Happen

Symptoms can have more than one cause, and the correct steps depend on the exact model, installation and operating conditions. Use the checks above to narrow the issue before service.

Safety and Model-Specific Guidance

Stop troubleshooting if you notice burning, electrical damage, unsafe heat, gas odor, refrigerant concerns, or water near electrical components. Follow the official LG USA instructions for your exact model.

Frequently Asked Questions

What should I check first for [LG Monitor] How to Fix No Sound Issues?

The monitor may not have built-in speakers, or the volume may be muted.

When should I stop troubleshooting and contact LG?

Stop if the product shows signs of electrical damage, burning, leaking near electrical components, or if the recommended checks do not resolve the issue. Use LG USA support for model-specific service guidance.

Does this guidance apply to every LG model?

Not always. Controls, error codes and service steps can differ by model. Confirm the exact model number and follow the linked LG USA article for model-specific instructions.

Related LG Products

These model pages are linked because the stored category or exact model matches this Help Library topic.

Buying Guides for This Product Type

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Read the Official LG Guide