HDMI Audio Not Working on Gaming PC: Fixes

Why HDMI audio stops working

HDMI carries both video and audio signals over a single cable. When audio stops working, the video usually remains intact, which can make the problem seem confusing. The issue often stems from a setting in Windows, a driver that needs updating, or a cable that does not support audio transmission.

Modern graphics cards from NVIDIA and AMD include HDMI outputs that support high-resolution audio formats. The NVIDIA GeForce RTX 50 Series, for example, provides one HDMI connector alongside DisplayPort outputs. If the audio device is not detected, the first step is to confirm that the cable and port are capable of carrying audio. For a selection of capable GPUs, see the best graphics cards for PC gaming.

Check the HDMI cable and connection

A loose or damaged HDMI cable is a common cause of missing audio. Ensure the cable is firmly inserted into both the graphics card and the monitor or TV. Try unplugging and reconnecting the cable at both ends. If the cable is old or bent sharply, replacing it with a newer high-speed HDMI cable can resolve the issue.

Some older HDMI cables may not support audio return or certain audio formats. For gaming PCs, a high-speed HDMI cable is recommended. Modern NVIDIA GeForce RTX graphics cards support high-bandwidth audio and video over HDMI. Using a cable that matches the capabilities of your GPU and display ensures reliable audio transmission. When choosing a display, refer to our best gaming monitors for compatibility.

Set the correct audio output device in Windows

Windows may default to a different audio output, such as speakers or headphones, instead of the HDMI connection. To change this, right-click the speaker icon in the taskbar and select "Open Sound settings." Under "Output," choose the device labeled with the monitor or TV name, often listed as "HDMI" or "Digital Audio (HDMI)."

If the HDMI device does not appear in the list, right-click anywhere in the Sound settings window and enable "Show Disabled Devices" and "Show Disconnected Devices." Right-click the HDMI device and select "Enable" if it is grayed out. Then set it as the default device. This step alone resolves many HDMI audio problems. For more tips on configuring Windows, see how to optimize Windows for gaming.

Update or reinstall graphics drivers

Graphics drivers manage the audio signal sent through HDMI. An outdated or corrupted driver can cause the audio stream to fail. Visit the GPU manufacturer's website to download the latest driver for your model. For NVIDIA GPUs, the NVIDIA App provides Game Ready Drivers that include audio support. If you need a step-by-step process, follow our guide to updating graphics drivers.

After updating, restart the PC and check if audio returns. If the problem persists, use a driver removal tool to completely uninstall the current driver, then perform a clean installation. This process removes any conflicting settings and restores the HDMI audio functionality to its default state.

Check monitor or TV audio settings

Many monitors and TVs have their own audio settings that can disable HDMI audio. On a monitor, navigate to the on-screen display menu and look for an audio or input section. Ensure the volume is turned up and that the audio source is set to HDMI rather than analog or analog. Consult the monitor's manual if the menu is unclear.

For TVs, check the sound settings menu for an option like "HDMI Audio Input" or "Digital Audio Out." Some TVs require the audio output format to be set to PCM or Bitstream to work with a PC. If you're unsure about which display to use, review the best 1440p gaming monitors for models with clear audio settings.

Try a different HDMI port or cable

If the steps above do not restore audio, test a different HDMI port on the monitor or TV. Some ports, especially on older displays, may not support audio. Also try a different HDMI cable, preferably one that is certified for high-speed or ultra-high-speed use.

Connecting the PC to another display or TV can help isolate whether the issue is with the original display or the PC itself. If audio works on a second display, the problem likely lies with the first display's port or settings. For a selection of displays with reliable HDMI inputs, see the best 4K gaming monitors.

Reset Windows sound settings

Windows includes a built-in troubleshooter for audio problems. Go to Settings > System > Sound > Troubleshoot and run the audio troubleshooter. It will scan for common issues and may automatically fix the HDMI audio output. If the troubleshooter does not help, try the steps in our guide to debugging audio glitches.

If the troubleshooter does not help, resetting the Windows sound system can clear persistent errors. Open Device Manager, expand "Sound, video and game controllers," right-click the audio driver (often "Realtek High Definition Audio" or "NVIDIA High Definition Audio"), and select "Uninstall device." Restart the PC, and Windows will reinstall the driver. This often restores HDMI audio functionality.

What to pick for your play

Questions

Why does my HDMI cable not carry audio?

The cable may be loose, damaged, or too old to support audio. Try a different high-speed HDMI cable and ensure it is fully inserted into both the GPU and the display.

How do I set HDMI as the default audio device?

Right-click the speaker icon in the taskbar, select Open Sound settings, and under Output choose the device labeled with your monitor or TV name. If it does not appear, enable disabled devices in the Sound control panel.

Do I need a special HDMI cable for audio?

Standard HDMI cables carry audio, but older or low-quality cables may fail. Use a high-speed certified cable to ensure reliable audio transmission, especially for high-resolution formats.

Can a faulty GPU cause no HDMI audio?

Yes, a GPU with a damaged HDMI port or failing audio circuitry can prevent audio output. Try a different port on the GPU or test with another display to confirm.

Why is there no sound after a driver update?

A driver update may reset audio settings or install an incompatible driver. Roll back the driver in Device Manager or perform a clean reinstall of the graphics driver.

Does HDMI version affect audio?

Newer HDMI standards support higher bandwidth and advanced audio formats. Modern GPUs like the NVIDIA GeForce RTX 50 Series support these standards, ensuring full audio capability when paired with a compatible cable and display.

What is the difference between HDMI and DisplayPort for audio?

Both HDMI and DisplayPort carry audio and video. HDMI is more common on TVs and monitors with built-in speakers, while DisplayPort is standard on PC monitors. If your monitor has speakers, HDMI is often the simpler choice for audio.

How do I reset Windows audio settings?

Run the audio troubleshooter in Settings > System > Sound > Troubleshoot. If that fails, uninstall the audio driver in Device Manager and restart the PC to let Windows reinstall it.