How to turn on the audio on the Xiaomi 27-inch monitor: full instruction with solutions to problems

Why is the Xiaomi 27 monitor not working?

Xiaomi’s 27-inch series monitors (including the Mi Desktop Monitor 27′′, Mi Curved Gaming 27′′ and Redmi Display 27′′) are equipped with built-in speakers, but many users face the problem of no sound after connecting. The reasons can be different, from banal turning off the volume to incorrect settings of the signal source or drivers.

Most often, the problem lies in the wrong connection of cables — for example, using HDMI without audio support or connecting via DisplayPort without activating the sound channel. System software can also be the culprit: Windows or macOS sometimes requires you to manually select a monitor as a sound output device, and less often there are hardware malfunctions — for example, damage to the audio chip after a voltage surge.

In this article, we will look at all possible ways to turn on sound, from elementary to advanced, and give recommendations for troubleshooting. If your Xiaomi monitor is silent, start with the first section and consistently check each item.

1. Physical connection check: cables and connectors

The first thing you need to do is make sure that the monitor is connected correctly. Not all cables transmit sound.

• 🔌 HDMI: Must support version 1.4 or higher (the cable body usually has a marking). HDMI-cables (until 2009) only transmit video.
• 🖥️ DisplayPort: audio is only transmitted if the cable is certified for DP 1.2+. Cheap uncertified cables can ignore audio feed.
• ⚡ USB-C: It should support Alt Mode with audio transmission (relevant to Mi Curved Gaming 27″).
• ❌ DVI/VGA: These interfaces don’t transmit sound in principle – you’ll need a separate audio cable. 3.5 mm.

If you use adapters (e.g. HDMI → DVI), the sound will not work, in which case connect the computer audio output directly to the monitor via a 3.5 mm connector (if you have one on the back of Xiaomi).

2. Sound adjustment in the operating system

Even if the monitor is connected correctly, the system can default to other speakers (such as those built into the laptop). Consider settings for Windows 10/11 and macOS.

For Windows:

1. Right-click on the sound icon in the tray → Open the sound parameters.
2. In the Output section, select your Xiaomi monitor (usually labeled HDMI, DisplayPort, or model name).
3. Click Device by default if the option is available.
4. Check the volume level in the same menu – sometimes it resets after connecting a new device.

For macOS:

1. Open System settings → Sound.
2. In the Output tab, select Xiaomi 27′′ (can be displayed as DisplayPort or HDMI).
3. If the monitor doesn’t appear on the list, try disabling/connecting the cable or rebooting the Mac.

On some Xiaomi models (e.g. Mi Desktop Monitor 27′′′ 4K), the sound may not be detected before installing the drivers. download them from the official Xiaomi website (Support → Drivers section).

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If the monitor doesn’t appear in the list of audio output devices, try connecting it to another port on the video card – sometimes the sound only works through certain connectors (for example, the sound works through a different port on the video card, HDMI-port on a discrete graphics card, not on the motherboard).

3. Customize the sound on the Xiaomi monitor itself

Xiaomi monitors have their own settings menu where you can control the sound.

1. Press the Menu button (usually located below the screen or on the right sidebar).
2. Go to Audio or Sound (navigation is done with the ↑/↓ buttons).
3. Make sure that:

• 🔊 Volume not set to 0 (adjusted by buttons) +/–).
• 🎵 The sound source is correctly selected (e.g, HDMI or DP, depending on the connection).
• 🔇 Mute mode is disabled (if there is a separate button without sound).

Some models (such as the Mi Curved Gaming 27) have an Audio Mode option with presets for games, movies or music, and try switching it to Standard if the sound is distorted or too quiet.

4. Driver verification and firmware update

If the sound never came, the problem could be with outdated graphics card drivers or monitor firmware.

Update of graphics card drivers:

• 🖥️ For NVIDIA: Download the latest drivers from the site NVIDIA (Choose the model of your video card).
• 🔴 For AMD: use the utility AMD Adrenalin.
• 🪟 For Intel’s built-in graphics: Update drivers with Intel Driver & Support Assistant.

Update of the monitor firmware:

The monitor firmware may contain bugs that affect sound, so you can update it.

1. Download the latest firmware version for your model from the Xiaomi website (Firmware section).
2. Unpack the archive and follow the instructions (usually you need to copy the file to the file). USB-drive and connect it to the monitor).
3. Run the update through the monitor menu: Settings → System → Software update.

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Updating your monitor firmware can reset all settings (brightness, contrast, sound).

5. Diagnostics of hardware problems

If after all the manipulations, the sound never worked, it could be a hardware malfunction.

• 🔧 Test with another device: connect the monitor to another PC, laptop, or even smartphone (via a computer). USB-C → HDMI). If there is a sound, there is a problem in your computer.
• 🎧 Speaker check: connect your headphones to the monitor through a 3.5mm connector (if any). If the sound goes into the headphones but not in the speakers, the speakers themselves are faulty.
• ⚡ Resetting: Reset the monitor to factory settings via the menu (Settings) → System system → Reset).

⚠️ Note: If the Xiaomi monitor has previously been hit, crashed, or connected to an unstable power grid (voltage surge), there is a high probability of damage to the audio chip, in which case repairs will be required at the service center. Independent soldering of chips without experience can lead to complete failure of the device.

It's also worth checking the power cable -- if it's damaged, the monitor can be unstable, including sound problems. Try replacing it with a known one.

6. Alternative methods of sound output

If the built-in Xiaomi monitor speakers don’t work or your quality doesn’t suit you, there are a few alternatives:

• 🎵 External speakers: connect them to the computer audio output (connector 3.5 mm or more) USB).
• 🎧 Bluetooth audio: if your PC supports Bluetooth 4.0+, Connect wireless headphones or a speaker.
• 🖥️ HDMI-Arc (eARC): if the monitor supports HDMI 2.1, you can output the sound to the soundbar or receiver through the back channel.
• 🔊 USB-sound card: inexpensive external device (from 500) ₽) Solve the sound problem if the problem is in PC ports.

For gamers using Mi Curved Gaming 27, connecting a gaming headset via USB or 3.5 mm will be a good solution – this will provide better sound quality and microphone for voice chat.

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If you use a Xiaomi monitor with a console (PS5, Xbox, the sound may not work due to settings HDMI-Go to the console settings and manually select HDMI Audio Output → Linear PCM (Not Bitstream).

FAQ: Frequent questions about the sound on the monitors Xiaomi 27