Acer Second Monitor Sound Not Working | Fast Fix Steps

You hook up a second Acer screen, the picture looks sharp, but the speakers stay silent. That break in sound can ruin a gaming session, movie night, or workday very fast. The good news is that most Acer second monitor audio problems come from settings, cables, or simple misunderstandings about what the monitor can do.

This guide walks through clear steps to fix sound on a second Acer monitor, from the quick checks that take seconds through deeper Windows and driver tweaks. You will learn how to tell whether your display actually has speakers, how to pick the right playback device, and what to try when cables or adapters get in the way. Follow the steps in order, and you will either restore sound or know exactly what needs repair or replacement.

Acer Second Monitor Sound Not Working Fixes Step By Step

Before jumping into menus, start with a short routine that rules out the most common causes. A lot of Acer second monitor sound not working cases come down to a missed volume control or the wrong output device in Windows. Treat these as your base checks every time you plug in a fresh screen or move your PC to a new desk.

Quick Checks For Any Acer Dual Monitor Setup

• Confirm The Connection Type — Check whether the second monitor uses HDMI or DisplayPort. VGA and DVI carry only video, so you will never get sound through those ports.
• Test With Another Source — Plug in a laptop, console, or another PC to the Acer monitor with the same cable. If audio plays from that device, the monitor and cable likely work.
• Raise Volume On The Monitor — Use the physical buttons or joystick to open the on-screen menu and raise the built-in volume or unmute the speakers.
• Check Windows Volume Icon — Click the speaker icon on the taskbar, drag the master volume slider up, and see whether the animated bar moves while something plays.
• Try A Different App — Switch from a browser tab to a local video or music file. Some sites and apps stay muted inside their own settings or browser tab controls.

If none of these steps bring sound to the Acer second monitor, do not worry. Next sections walk through deeper checks, including how to see whether the screen even has speakers and how to pick it as the active output device.

Check Whether The Acer Monitor Can Play Sound

Many Acer displays ship without built-in speakers. In those cases, no amount of software work will make sound come out of the panel itself. Instead, you need separate speakers or a headset. So the first deeper step is to confirm what your specific model can do.

Look at the back and sides of the monitor. If you see only video ports and maybe a headphone jack but no speaker grilles or volume option in the on-screen menu, the panel likely has no speakers. Some models include Audio Out only, which passes sound to external speakers even though the monitor itself stays silent.

Port Setup	Speaker Presence	What To Expect
HDMI / DisplayPort + Speaker Grilles	Built-in speakers	Sound should play through the monitor once it is the active audio device.
HDMI / DisplayPort + Audio Out Jack	No speakers, only audio out	Connect external speakers or headphones to the monitor’s audio jack.
VGA / DVI Only, No Audio Jacks	No audio hardware	Use PC speakers, a soundbar on the PC, or a USB headset instead.

If your second Acer screen has no speakers, treat it as a video-only display. You can still send audio to a soundbar, headset, or another monitor with speakers. If the monitor clearly has speakers and an HDMI or DisplayPort input, move on to Windows sound settings.

Set The Right Playback Device In Windows

A very common reason for Acer second monitor sound not working is that Windows sends sound to a different device. When you add a second screen, the system might stay on your laptop speakers, a USB headset, or the first monitor. You need to tell Windows to send audio to the Acer second display instead.

Select The Acer Monitor As Output In Windows 11 Or 10

1. Open Sound Settings — Right-click the speaker icon on the taskbar and pick Sound settings (Windows 11) or Open Sound settings (Windows 10).
2. Choose The Output Device — Under the Output heading, open the drop-down list and select the Acer monitor by name. It may show as the model number with “HDMI” or “DisplayPort.”
3. Test The Sound — Click the Test button if available, or play a short video or song. Watch the level meter next to the monitor device name.
4. Set As Default Device — In Windows 10, you can open the classic Sound Control Panel, right-click the Acer monitor on the Playback tab, and choose Set as Default Device.
5. Check App Output — Scroll down to App volume and device preferences and confirm that your media player or browser also points to the Acer monitor or to “Default.”

If the Acer display never shows in the list of playback devices, even with HDMI or DisplayPort, double-check the cable and try another port on the graphics card. In some cases Windows only exposes monitor audio after the graphics driver loads correctly, so driver steps later in this article can also help here.

Fix Cable, Port, And Adapter Problems

Sound over HDMI or DisplayPort depends on a clean path from the graphics card to the monitor. A loose plug, old adapter, or wrong combination of ports can mute the Acer second screen even when everything looks fine at first glance.

Common Connection Traps

• Using VGA Or DVI — These standards carry only video. If your second screen connects through a VGA or DVI cable, audio will never reach the monitor. Switch to HDMI or DisplayPort for any model with speakers.
• Passive Adapters In The Chain — Cheap HDMI-to-VGA or DisplayPort-to-VGA adapters often drop audio. When possible, connect HDMI to HDMI or DisplayPort to DisplayPort directly.
• Loose Or Damaged Cable — Wiggle the cable gently at both ends. If the picture cuts out, the cable may be faulty. Try a different cable that you know works with sound on another setup.
• Wrong Port On The PC — Some desktops have both motherboard and graphics-card ports. Plug the Acer second monitor into the graphics-card HDMI or DisplayPort for the most reliable audio.

After each change, go back to Windows sound settings and test again. If a direct HDMI or DisplayPort link still does not show the monitor as an output choice, it is time to look closer at drivers and Windows audio services.

Adjust App, Game, And Browser Audio Settings

Even when Windows sends audio to the right device, a single app can keep the Acer second monitor quiet. Browsers, players, and games all have their own volume sliders and mute buttons. A muted tab or a low slider often looks like a device problem until you check the small icons.

Per-App Audio Checks

• Check Browser Tab Mute Icons — In Chrome, Edge, and similar browsers, a small speaker icon appears on tabs that play sound. Right-click the tab and make sure it is not muted.
• Open Volume Mixer — Right-click the speaker icon on the taskbar and choose Open volume mixer. Raise the sliders for your media player, browser, or game so they match the main volume.
• Review In-Game Audio Menus — Many games let you pick an output device inside their settings. Switch the device to the Acer monitor or to “System default,” then save the change.
• Check Streaming App Settings — Apps like Netflix, Spotify, and others include their own volume bar. Make sure the in-app level is not set near zero.

Take a moment to play sound from two or three different sources. If audio works in one app but not another, the Acer hardware and Windows output choice are fine, and you only need to tune settings inside the silent app.

Update Or Reinstall Audio And Display Drivers

If sound still refuses to play on the second monitor after basic checks, drivers may be out of date or slightly broken. HDMI and DisplayPort audio usually come from the graphics driver, not just the standard Windows sound driver. A clean driver install often brings the Acer display back as an output choice.

Refresh Graphics And Audio Drivers

1. Run Windows Update — Open Settings, go to Windows Update, and download any pending updates. Many driver fixes arrive through this channel.
2. Install GPU Vendor Drivers — Visit the site for NVIDIA, AMD, or Intel and grab the latest driver for your card. During setup, pick the clean install option if offered.
3. Check Device Manager — Press Win + X, choose Device Manager, expand Sound, video and game controllers, and look for entries with HDMI or your GPU name.
4. Reinstall HDMI Audio Device — Right-click the HDMI or monitor audio device, pick Uninstall device, then restart the PC so Windows adds it back fresh.
5. Add The Acer Monitor Driver — On Acer’s global site, search for your exact model and download any monitor driver or .inf file. Install it so Windows can label the screen correctly.

After a restart, plug in only the Acer second display through HDMI or DisplayPort and test sound again. If the monitor now appears in the playback list and passes the test sound, reconnect other displays and repeat the output selection steps.

When Acer Second Monitor Sound Not Working Needs Extra Help

If you still face Acer second monitor sound not working issues after trying the steps above, you may be dealing with a hardware fault or a very stubborn software glitch. At this point you should have clear answers to a few facts: whether the monitor has speakers, whether it works with another device, and whether Windows exposes it as an output device at all.

Signs Of A Hardware Problem

• Speakers Work Briefly Then Cut Out — Sound plays for a second, then drops, even on different PCs and cables. That hints at failing speakers or internal parts.
• No Sound From Any Source — The monitor never plays audio, even with a console, media box, or another laptop that works fine on other displays.
• Physical Damage Or Buzzing — You hear harsh buzzing or see damage near the speaker grilles whenever sound should play.

When you see signs like these, contact an Acer service center or the retailer if the monitor is still under warranty. Explain that the second monitor picture is fine but audio fails across several devices and cables. Mention the driver and settings work you already tried so the technician can skip straight to hardware checks.

If the display has no speakers or repair is not worth the cost, an external sound solution is often the easiest path. A small soundbar under the monitors, a pair of powered speakers, or a reliable headset can plug into your PC, docking station, or the monitor’s own audio out jack. You still get the extra screen space of a dual setup, and you move audio to hardware that is easier to upgrade later.

By working through these steps from quick checks to drivers and hardware, you give yourself the best chance to restore life to silent Acer screens. Next time you connect a second monitor, you will know exactly how to set Windows outputs, pick the right cables, and spot whether the panel can play sound in the first place.