Why the sound does not work on the laptop when watching videos on the Internet - 12 reasons and solutions

You launch the video on YouTube, Netflix or another site, but the sound is stubbornly silent - the picture is playing, but the laptop speakers are silent. The situation is familiar to many: according to statistics, every fifth user encounters problems playing audio in the browser at least once a year. The reasons may lie in the settings of the laptop itself, or in software conflicts or even hardware faults.

In this article we will look at all possible reasons for no sound when watching online videos - from trivial (speakers turned off) to complex (damaged drivers or codec). We will pay special attention differences between operating systems: solutions for Windows 10/11, macOS And Linux may differ radically. You will also find unique diagnostic methods that are not described in standard instructions - for example, how to check if an antivirus or VPN is blocking the sound.

1. Check basic settings: speakers, volume and output devices

Before you dig deeper, make sure that the problem is not in basic settings. Start by checking physical regulators: On some laptops (eg Lenovo ThinkPad or Dell Latitude) there are separate buttons for muting the sound on the case. They may operate accidentally when carrying the device.

Next, check the software settings:

• 🔊 System volume: Click on the speaker icon in the tray (Windows) or menu bar (macOS). Make sure the slider is not at zero or disabled with a cross.
• 🎧 Output device: in Windows right click on the sound icon → Open sound options → in the section Conclusion select the correct device (eg Speakers (Realtek Audio)). On macOS go to System Preferences → Sound → Output.
• 🔇 Mute the browser: some sites (for example, Twitch) have their own volume controls - check them on the player panel.

If you are using Bluetooth headphones or external speakers, turn them off and try playing sound through the built-in speakers. Sometimes a conflict between output devices causes the sound to disappear completely.

2. Problems with the browser: cache, extensions and site settings

The browser is the most vulnerable link in the audio playback chain. Most often the culprits are:

• 🗑️ Cached data: Outdated files may conflict with new versions of players. Clear the cache in your browser settings (in Chrome: Settings → Privacy and Security → Clear history).
• 🧩 Extensions: ad blockers (uBlock Origin, AdGuard) or VPN plugins may block audio tracks. Disable all extensions and check the sound.
• 🔒 Site settings: some resources (for example, Facebook or VK Video) request permission to play audio. Check the speaker icon in your browser's address bar.

If there is no sound in only one browser, try opening the video in another. For example, Firefox And Chrome use different engines for audio processing (Web Audio API), and the problem may be browser specific.

Check the volume on the website itself (speaker icon in the player)

Disable all browser extensions

Clear cache and cookies

Try a different browser (eg Edge instead of Chrome)

Update your browser to the latest version-->

Critical moment: in Chrome And Edge There is a hidden setting that can mute tabs in the background. To check it, enter in the address bar:

chrome://flags/#enable-tab-audio-muting

If the parameter is set to Enabled, change it to Disabled and restart your browser.

3. Sound card driver conflicts: how to update or reinstall

Drivers are “translators” between the hardware and the system. If they are outdated, damaged, or conflict with other programs, the sound may disappear selectively (for example, only in the browser). Symptoms of the problem:

• 🔄 Sound works in Spotify or local players, but not in online videos.
• 🚨 B Device Manager An exclamation point appears next to the sound card.
• 🔊 Clicking or distortion is heard when playing videos.

Solutions for Windows:

1. Open Device Manager (Win + X → Device Manager).
2. Expand section Sound, gaming and video devices.
3. Right click on your sound card (eg Realtek Audio or NVIDIA High Definition Audio) and select Update driver.
4. If the update does not help, select Remove device, then restart the laptop - the system will install the driver automatically.

For macOS And Linux the process is more complicated: here the sound is controlled at the kernel level. On macOS try resetting NVRAM (while loading, hold Command + Option + P + R until the second beep). On Linux check if the sound is blocking PulseAudio:

pulseaudio -k && pulseaudio --start

4. Codecs and audio formats: why the browser does not play sound

Videos on the Internet are encoded differently audio codecs (For example, AAC, Opus, MP3). If the browser does not support the audio track format, the video will play without sound. Especially relevant for:

• 🎬 Video format H.265 (HEVC) with audio Dolby Digital (often found on Netflix or Disney+).
• 🔊 Old versions of browsers that do not support Opus (used in WebRTC, for example, for video chats).
• 🛡️ Sites with DRM protection (for example, Amazon Prime Video) where additional modules are required Widevine.

Solutions:

1. Update your browser to the latest version.
2. Install additional codecs:
   • For Windows: download K-Lite Codec Pack (choose version Standard).
   • For Linux: install the package ubuntu-restricted-extras or gstreamer-plugins-bad.

chrome://components/

5. Hardware problems: speakers, connectors and BIOS

If the sound doesn't work in the browser or other applications, there may be a hardware problem. Check:

• 🔌 Connecting speakers: On some laptops (eg ASUS ROG or MSI) the speaker contacts come off when dropped. Try applying light pressure to the housing near the speakers while audio is playing - if you hear a popping noise, it's a mechanical problem.
• 🔧 Headphone jack: Insert and remove the headphones several times. If after this the sound from the speakers is not restored, the mechanical switch may have tripped (a common problem with MacBook Pro until 2018).
• 🖥️ BIOS/UEFI Settings: On some laptops (eg Lenovo Legion) the sound card can be disabled at the BIOS level. When loading, click F2 or Del, find the section Advanced → Audio Device and make sure it is enabled (Enabled).

Attention! If you recently updated the BIOS, the sound may have disappeared due to a factory reset. Return to factory settings (Load Default Settings) and save the changes.

6. Viruses, antiviruses and VPNs: unexpected culprits

Security and network programs can block audio for several reasons:

• 🛡️ Antiviruses: Kaspersky, Avast or ESET NOD32 Sometimes they block browser access to the sound system, mistaking it for suspicious activity. Add your browser to exceptions or temporarily disable protection.
• 🌍 VPN and proxy: services like NordVPN or ProtonVPN may redirect traffic, including audio streams, through their servers, resulting in delays or no sound at all. Turn off your VPN and check your sound.
• 🦠 Malware: some viruses (for example, Trojan.Win32.Audiodriver) replace system audio drivers with their own versions. Check the system with Malwarebytes or Dr.Web CureIt.

How to check the influence of your antivirus:

1. Open the antivirus panel and find the section Exceptions or Safe files.
2. Add to exceptions:
   • Browser executable file (for example, chrome.exe).
   • Browser profile folder (usually C:\Users\Username\AppData\Local\Google\Chrome).

7. Features of operating systems: Windows, macOS and Linux

Each OS has unique pitfalls with sound. Let's look at them in detail.

Windows 10/11:

• 🪟 Windows Audio Service may be disabled. Check its status:
  1. Click Win + R, enter services.msc.
  2. Find a service Windows Audio and make sure it works (Status: In Progress).

macOS:

• 🍎 Core Audio - the core of the sound system may freeze. Reset it through Terminal:

  sudo killall coreaudiod

• 🔕 Problems with AirPods: If you connected wireless headphones, the sound may be stuck on them even after disconnecting. Go to System Preferences → Sound → Output and manually select Built-in speakers.

• 🔧 The speakers don't make any sound, even system signals (for example, when turning on a laptop).
• 🔥 There was a burning smell or the laptop is overheating in the sound card area.
• 💥 The sound disappears after physical impact (for example, after a fall or blow).
• 🔌 The sound does not work either through the speakers or through the 3.5 mm jack.

The cost of repair depends on the laptop model:

Fault type	Average repair cost (₽)	Repair time
Replacing speakers	1 500 — 4 000	1–2 days
Sound card repair (resoldering capacitors)	3 000 — 8 000	3–5 days
Replacing the sound chip (eg Realtek ALC256)	5 000 — 12 000	5–7 days
Diagnostics + contact cleaning	1 000 — 2 500	1 day

Attention! On laptops with a discrete sound card (for example, Creative Sound Blaster in game models ASUS ROG or MSI) repairs may cost more due to the difficulty of replacing the chip. Before visiting the service center, check to see if spare parts are available for your model.

💡

If your laptop is under warranty, do not try to repair it yourself! Opening the case or replacing components will void the warranty of most manufacturers (the exception is models with a modular design, e.g. Framework Laptop).

FAQ: Frequently asked questions about problems with sound in the browser

🔊 Why is there sound on YouTube, but not on Netflix?

Netflix uses protected streams Widevine DRM, which require additional modules in the browser. Update the component Widevine in browser settings (chrome://components/) or reinstall your browser. Also check to see if your ad blocking extension is blocking your sound.

🖥️ The sound disappears only in full screen mode. What's the matter?

This is a known issue Google Chrome And Microsoft Edgeassociated with hardware acceleration. Disable it:

1. Go to Browser settings → System.
2. Disable the option Use hardware acceleration (if available).
3. Restart your browser.

If this doesn't help, update your video card drivers (NVIDIA, AMD or Intel).

🎧 The sound comes only through the headphones, but not through the speakers. How to fix it?

Most likely, the mechanical switch in the 3.5 mm jack has tripped (a common problem with MacBook And Dell XPS). Try:

1. Insert and remove the headphones 3-5 times.
2. Clean the connector with compressed air (do not use metal objects!).
3. On Windows update driver Realtek Audio to the latest version from the manufacturer's website.

If this does not help, the connector needs to be replaced (cost ~2,000 ₽).

🔄 The sound appears and then disappears. What is the reason?

This is a symptom resource conflict or sound card overheating. Check:

• 🌡️ Sound card chip temperature using HWMonitor (for Windows) or sensors (for Linux). If it is above 70°C, the laptop needs to be cleaned from dust.
• 🔌 Conflict with other devices in Device Manager. Disconnect any unnecessary USB devices and check the sound.
• 🔄 Automatic switching of audio devices (for example, when connecting Bluetooth devices). Disable this feature in your sound settings.

🛠️ Is it possible to fix the speakers yourself?

Theoretically yes, but it's risky:

• 🔧 To replace the speakers you will need complete disassembly of laptop, which can lead to damage to the cables.
• 🔌 Speakers in laptops are often soldered to the motherboard (especially in models Apple or Lenovo Yoga).
• ⚠️ The warranty will be void if you damage the seals or case.

If you still decide, find on YouTube disassembly of your particular model (for example, search for “Dell Inspiron 15 5000 speaker replacement"). For work you will need: screwdriver Torx T5, plastic spatulas and a soldering iron (for soldered speakers).