Connecting your gaming PC to a TV can deliver a bigger and more engaging gaming experience, ideal for both casual gaming and watching media. However, one problem many users face is a lack of sound when connecting their PC to a TV via HDMI or DisplayPort.

If you’re encountering this issue, there are several potential reasons behind it. In this guide, we will explore the most common causes and provide actionable steps to restore sound to your gaming setup.

1. Double-Check the HDMI or DisplayPort Connection

Your HDMI or DisplayPort cable carries both the video and audio signals from your gaming PC to the TV. If the connection isn’t secure or the cable is damaged, you may experience sound problems.

Even if the video displays perfectly, the audio can fail to transmit if the cable is partially disconnected or has internal defects.

Here’s what to do:

  1. Ensure a Secure Connection: Double-check that the cable is firmly connected to both the PC and the TV. Even a slightly loose connection can cause sound issues.
  2. Swap the Cable: Try using a different HDMI or DisplayPort cable to rule out any issues with the cable itself. If you experience the same issue with another cable, the problem likely lies elsewhere.
  3. Select the Correct Input: Ensure that your TV is set to the correct HDMI or DisplayPort input. Sometimes, switching inputs can reset the connection and resolve audio issues.

2. Verify Audio Output Settings on Your PC

When you connect your PC to a TV, the system doesn’t always automatically switch the audio output to the TV. It may continue outputting audio to the PC speakers or headphones, leaving your TV without sound.

To fix this, follow these steps:

  1. Access Sound Settings: Right-click on the speaker icon in your taskbar and select “Open Sound Settings.” Under the “Output” section, ensure that your TV is selected as the default output device.
  2. Manage Sound Devices: If your TV is not listed, click on “Manage sound devices” and look for your TV under the disabled devices. If you find it, enable it.
  3. Control Panel Method: Alternatively, go to Control Panel > Sound > Playback, and make sure your TV is selected as the default device in the Playback tab.

These steps should reroute the audio from your PC’s internal speakers to the TV, allowing the sound to be transmitted over HDMI or DisplayPort.

3. Update or Reinstall Audio and Display Drivers

Drivers are essential for ensuring that your PC hardware works as expected, and outdated or corrupted drivers can often cause sound problems when connecting to external displays. Since the HDMI or DisplayPort audio drivers are linked to your graphics card, keeping them up-to-date is crucial.

To resolve driver-related issues:

  1. Update GPU Drivers: Visit the official website for your graphics card manufacturer (e.g., NVIDIA, AMD, or Intel) and download the latest drivers. Ensure you install the drivers for both the display and audio components.
  2. Update Audio Drivers: You may also need to update your system’s audio drivers, especially if you are using a separate sound card. Visit your motherboard or sound card manufacturer’s website to find the latest drivers.
  3. Reinstall Drivers: If updating doesn’t resolve the issue, try uninstalling and reinstalling the drivers. This can clear up conflicts or corrupted files that are preventing sound from reaching your TV.

Once the drivers are updated or reinstalled, restart your PC and reconnect it to the TV to check if the sound issue has been resolved.

4. Check Your TV’s Audio Settings

It’s easy to overlook your TV’s own audio settings, but they can sometimes cause sound issues when connecting to a gaming PC. Modern TVs often have multiple audio output options, and if they’re configured incorrectly, the sound may not play through the built-in speakers.

Here’s what you should do:

  1. Check TV Volume and Mute: Make sure your TV isn’t muted and that the volume is turned up. It’s a simple step but can often be the culprit.
  2. Adjust TV Audio Output Settings: Navigate to your TV’s audio settings menu and ensure that the sound is set to play through the TV speakers. Some TVs are set to output audio to external devices, such as soundbars, which could explain the lack of sound.
  3. Use External Speakers Properly: If you’re using an external sound system, such as a soundbar or home theater system, ensure that it is connected properly to your TV and powered on.

Once you’ve adjusted the TV’s audio settings, the sound should begin working normally if the problem was caused by a misconfiguration.

5. Investigate HDCP Issues

HDCP (High-bandwidth Digital Content Protection) is a form of digital copy protection used with HDMI connections. It’s designed to prevent piracy by ensuring that only authorized devices can receive and display the content.

However, HDCP can sometimes cause compatibility issues between your gaming PC and TV, leading to no sound being transmitted.

To troubleshoot HDCP issues:

  1. Disable HDCP (if possible): Some TVs allow you to disable HDCP in the settings. Look under your TV’s advanced settings for this option.
  2. Update Firmware: If your TV and PC are using HDCP, ensure that both are running the latest firmware and drivers. Compatibility issues are often resolved with firmware updates.
  3. Check the Content Source: Some specific content, such as streaming services or DRM-protected media, may require HDCP to function properly. Switching to a different content source could help diagnose the issue.

6. Consider Game or Application-Specific Settings

Certain games or applications may have their own audio output settings that override the system’s default settings. This is particularly common in games where users may switch between different sound devices like headphones, speakers, or a TV.

Here’s what to check:

  • In-Game Settings: Go to the audio settings within the game or app and ensure that the output is set to your TV speakers or system default. Some games may need to be restarted after adjusting audio settings.
  • App-Specific Issues: If the issue is occurring with a particular streaming app or game, check for updates or patches, as these might include fixes for audio output issues.

Conclusion

If your gaming PC has no sound when connected to your TV, it could be due to a variety of factors, from connection issues to driver problems or misconfigured settings. By following the troubleshooting steps outlined in this guide, you should be able to identify and resolve the problem, restoring sound to your setup.

With these adjustments, you can fully enjoy your gaming and media experiences on the big screen, complete with high-quality audio.

If none of these solutions work, it may be worth contacting customer support for either your TV or PC manufacturer to help diagnose a deeper hardware or compatibility issue.

Avatar for Marlo Strydom

Marlo, the founder of Computer Info Bits, has over 20 years of IT expertise. He's passionate about technology and aims to demystify it. Since 2019, he's been writing articles covering essential computer tips to complex hardware discussions, helping readers better understand and use their technology. Marlo stays up-to-date with the latest tech developments through extensive research and interaction.