When I discovered no audio was coming through my ASUS monitor speakers, I assumed my device was broken. As it turned out, the solution was far simpler than I imagined.
If your ASUS monitor has no sound, first confirm your model supports audio! Next, update the audio source, adjust the display and PC volume settings, and enable loudness equalization. If the issue persists, check the audio cables, update the audio driver, and ensure the BIOS audio onboard device is enabled.
In the process of trying to get my display fixed, I found there are really 8 total troubleshooting steps you should try. Let’s review all 8 steps in greater detail together.
Step 1: Confirm Audio Compatibility
While this may sound exceedingly obvious, not every ASUS display comes with speakers or even support audio output functionality.
Believe me, I know this seems beyond obvious. But as it turns out, this happens to be the most common explanation.
For this reason, the first step is to take a closer look and use your monitor’s model number to perform a product look up. You will typically be able to locate the model number on a sticker on the back side of your display.
Once you have identified your monitor, select it and then select Tech Specs from the top of the screen.
Here, under the Audio Features section, determine if your specific monitor supports speakers.
It is important to note that a monitor that supports “Earphone output” is NOT the same thing as having built-in speak capabilities.
Supporting Earphone output simply indicates that you can plug headphones or external speakers into your monitor directly.
Once you are confident that your monitor does in fact have speakers and/or supports audio outputs, continue on to step 2.
Step 2: Change Default Audio Source
Another fairly obvious but common cause is having the wrong audio source selected on your PC.
So take a moment to be absolutely sure your PC’s audio is correctly set to your monitor.
All operating systems are slightly different and so this process may vary a bit. For Windows users, you can click on the volume icon from the application tray in the bottom right corner of your screen.
Notably, if the volume icon does not appear, simply click the application up arrow icon and then select it from the pop up field.
Once selected, all available audio sources will appear. In my case, I happen to have an external gaming speaker attached to my monitor, which is what I have selected above.
However if your model has built-in speakers, you’ll want to select your display as the “playback device”.
Step 3: Increase Monitor Volume Level
Another quick troubleshooting step is to ensure your monitor volume levels are appropriately set.
Often times this issue arises because the monitor has been accidently set to mute or the volume is simply set too low.
Most ASUS models allow you to adjust the monitor volume levels via the main menu button on the right hand side of the display.
Go ahead and set the monitor volume on the higher side to ensure it is loud enough to hear.
Step 4: Increase PC Volume Levels
At the same time, it is critical that the device you have attached to your monitor also has the correct volume settings selected. You can have your monitor volume sky high, but if your attached device is muted, you won’t hear anything!
For Windows users, right click on the volume icon in the applications tray in the bottom right corner of your screen and select Open Sound Settings.
Then under Sound Settings, ensure the Master volume is set to a higher level. Also be sure that the mute settings is not select.
Now close out of everything and right click on the volume icon again. This time select Open volume mixer.
Here you want to inspect the volume levels of the specific application that you are attempting to use.
It is extremely common to find your audio specifically does not work when using an application like Google Chrome. This is because Chrome has its own unique volume settings that need to also be adjusted accordingly.
If you have a gaming system or some other device besides a PC attached to the monitor, this step still applies!
Step 5: Enable Loudness Equalization
For folks using a Windows PC, I also recommend you activate Loudness Equalization.
With this setting activated, the overall audio quality will automatically become more balanced. This is useful in our case because really low volume sounds will get amplified and become louder.
In the event the volume is actually working, but just extremely low for some other reason, you will be able to catch it!
- First, navigate to the Windows Control Panel.
- Next, within the Control Panel locate and select Sound.
- Now double click on the specific device through which you would like the sound to play through.
- Finally, under the Enhancements tab, enable Loudness Equalization and click OK.
Step 6: Inspect Audio Cables
Audio for monitors with built-in speakers is most often carried through an external audio cable. In most cases this cable will be a DisplayPort (DP) or HDMI.
For monitors without speakers, but that DO support audio outputs, there will notice a separate audio jack cable.
In either case, you need to inspect the audio cable connection and ensure it is secure and both ends are plugged into the correct ports.
It is also always a good idea to try using a different audio cable.
This way, if using a different cable results in the sound coming back, you’ll know the cable itself is likely damaged. If so, replace it!
Step 7: Update Apps And Audio Driver
If you are still having trouble, either your PC applications and/or your audio driver may need to be updated.
Most application publisher offer updates to their apps every so often. These updates times often include new features or provide fixes to various app issues.
You can easily check Microsoft Store on Windows to automatically install app updates.
- First select Start, and click on the Microsoft Store.
- In the Microsoft Store, click on the account menu and then select Settings.
- In App updates, set Update apps automatically to On.
Depending on the specific version of Windows you are running, these steps may slightly vary. Check out the official Windows support page to learn how to update your apps across Windows versions.
With your apps now updated, it’s time to update your audio device driver.
Type Device Manager into the search bar and select it from the menu. Under Sound, video and game controllers right-click on the name of your audio device, and select Update driver.
First, select Search automatically for updated driver software and wait for your audio driver to be updated. If this doesn’t work, select Search for update drivers on Windows Update instead.
In the event this does not fix your problem, you’ll need to uninstall the sound driver by right-clicking and selecting Uninstall.
Then just Restart your PC. When the computer boots back up, Windows will automatically attempt to reinstall the audio driver during startup.
If for some reason your driver does not automatically reinstall, or if you do not see your specific audio device driver within the device manager to start with, you will need to download it.
Step 8: Enable BIOS Audio Onboard Device
While fairly uncommon, some users who have purchased a used PC have reported their BIOS onboard audio settings being tampered with.
To see if your BIOS audio is the cause, boot your PC into the BIOS menu using the relevant keyboard shortcut during startup.
Once in the BIOS settings, find the Onboard Devices field and make sure Audio is enabled.
If you encounter your ASUS monitor sounds not working, follow these 8 troubleshooting steps in this exact order:
- Confirm audio compatibility
- Change default audio source
- Increase monitor volume level
- Increase PC volume levels
- Enable Loudness Equalization
- Inspect audio cables
- Update apps and audio driver
- Enable BIOS audio onboard device
Unfortunately not all audio problems can be solved on your own. If you still can’t hear anything coming from your display, try contacting ASUS Customer Service at 1-812-282-2787.
You can also use your model number to check the status of your ASUS warranty, should you need to purchase a new device.
Chelsea Ashbrook is a Senior Manager of Corporate Digital Experience at Genentech. Chelsea received her B.A. from the University of Connecticut and has spent the last 11 years working in the technology field.