How to Tell if Your Wi-Fi Adapter Supports Miracast: A Step-by-Step Guide

Do you want to stream your laptop or smartphone screen to your TV wirelessly but aren't sure if yours supports it? Wi-Fi adapter technology MiracastThis problem is familiar to many: you bought a new adapter, but wireless image transmission doesn't work, despite the specifications promising everything. Or, conversely, the old module suddenly started "seeing" the function. Wireless Display, although it wasn't there before.

In this article we will look at 5 reliable ways Check your adapter's compatibility with Miracast — from analysis of technical specifications to practical tests on different operating systems. You will learn which Broadcom, Intel, and Qualcomm chips are guaranteed to support Miracast, how to bypass driver limitations, and what to do if Windows or Android doesn't recognize a feature even though it should be there. Plus, a compatibility chart of popular adapters and answers to frequently asked questions about setup.

1. What is Miracast and why don't all Wi-Fi adapters support it?

Miracast — is a standard for wireless transmission of video and audio using the protocol Wi-Fi Direct, developed Wi-Fi AllianceIt allows you to mirror your device's screen (laptop, smartphone, tablet) to a TV, projector, or monitor without using a router—directly, like HDMI, but over the air. The technology operates on a frequency 2.4 GHz or 5 GHz (depending on the adapter) and requires minimal latency for comfortable viewing.

However, not everyone Wi-Fi module capable of this. Here are the key reasons:

• 🔧 Hardware limitations: the adapter must support Wi-Fi Direct and regime P2P (Peer-to-Peer). Cheap chips (for example, Realtek RTL8188EU) are often deprived of this.
• 🖥️ Drivers: Even if the hardware is compatible, outdated or "cut" drivers may block the function. This is especially true for laptops with Intel Wireless-AC 9560 and the like.
• 📡 Opening hours: some adapters support Miracast only in mode 5 GHz, and your TV can only work on 2.4 GHz.
• 🔄 Device firmware: On Android smartphones or Smart TVs, the function may be disabled by the manufacturer (for example, on some models Xiaomi or Samsung).

⚠️ Attention: if your adapter supports Wi-Fi 6 (802.11ax), this does not guarantee compatibility with Miracast. For example, Intel AX200 works with technology, and Realtek RTL8852AE - no, despite the similar standard.

2. Method 1: Check by Wi-Fi adapter model (compatibility table)

The fastest way is to find your adapter model in the list of supported ones. If you are using external USB adapter, its name is usually indicated on the body (for example, TP-Link Archer T4U or ASUS USB-AC56). For built-in modules In laptops, the model can be found through device Manager (more on this below).

Here is the current compatibility table for popular chips and adapters:

🔍 How to find out the model of the built-in adapter in Windows:

1. Click Win + X → select device Manager.
2. Expand the branch Network adapters.
3. Find the device with the words Wireless, Wi-Fi or Network Adapter.
4. Right click → Properties → tab Intelligence → select Equipment ID.
5. Copy the first line from the field Meaning (For example, PCI\VEN_8086&DEV_2723) and search for it on Google.

3. Method 2: Checking via Windows (built-in tools)

If you have a laptop or PC with Windows 10/11, the system itself can tell you whether it is supported MiracastTo do this:

1. Open Parameters (Win + I) → System → Display.
2. Scroll down and select Connect to a wireless display.
3. If the feature is enabled, the system will begin searching for devices. If not, a message will appear:

⚠️ Attention: if you see the inscription Your computer or adapter does not support Miracast, so you cannot connect wirelessly to the display., this does not always mean hardware incompatibility. Sometimes the problem is in the drivers (see Method 4).

🛠️ Additional verification via command line:

1. Launch Command line on behalf of the administrator.
2. Enter the command:

   netsh wlan show drivers

3. Find the line Hosted network support (Hosted Network). If there Yes, the adapter is theoretically capable of Miracast.
4. Also check the line Radio type — it should be 802.11ac or 802.11ax (and not only 802.11n).

📌 Exceptions:

• 🖥️ Some laptops Dell (For example, Latitude 7490) are blocking Miracast at the BIOS level, even if the adapter supports it.
• 🔄 In Windows 11, this feature may not work due to bugs in early versions of the OS (update your system).

4. Method 3: Checking via Linux (terminal)

If you are using Linux (eg. Ubuntu or Fedora), check support Miracast You can do this via the terminal. To do this:

1. Open Terminal (Ctrl + Alt + T).
2. Enter the command to check the adapter information:

   lspci -knn | grep -iA3 net

   or for USB adapters:

   lsusb

3. Find the line with your Wi-Fi module (for example, Network controller: Intel Corporation Wireless-AC 9560).
4. Check support P2P (Peer-to-Peer) command:

   iw list | grep -i "P2P"

   If the output contains P2P-supported: yes, the adapter is compatible with Miracast.

⚠️ Attention: Linux support Miracast depends not only on the adapter, but also on the stack wpa_supplicant and kernels. For example, in Ubuntu 20.04 the function may not work out of the box, but in Fedora 36 - Yes. Configuration will require manual compilation of drivers (for example, for chips) Broadcom).

🔧 Useful packages for Miracast on Linux:

• 🐧 wfd (Wireless Display) is the main tool for broadcasting.
• 🖥️ miraclecast — an alternative implementation of the protocol.
• 📦 network-manager (version 1.16+) - for managing connections.

How to enable Miracast in Ubuntu 22.04+

Install packages: sudo apt install wfd miraclecast

Then add the adapter to the P2P group:

sudo iw dev wlan0 set type p2p-device

(replace wlan0 to the name of your interface).

5. Method 4: Update drivers (if Miracast doesn't work out of the box)

A common situation: the adapter supports Miracast, but Windows or Linux can't see it. This is often due to outdated or outdated drivers. Here's how to fix it:

For Windows:

1. Download the latest drivers from the adapter manufacturer's website (not from Device Manager!). For example:
   • 🔗 For Intel: official page.
   • 🔗 For Realtek: look on the laptop manufacturer's website (for example, ASUS or MSI).

Remove old drivers via device Manager (right click → Remove device → check mark Uninstall driver programs).

Install the downloaded drivers and restart your PC.

For Linux:

• 🐧 For chips Intel install the package firmware-iwlwifi:

sudo apt install firmware-iwlwifi

• 🖥️ For Broadcom a proprietary driver may be required wl:

sudo apt install broadcom-sta-dkms

⚠️ Attention: if after updating the drivers Miracast it still doesn't work, check:

• 🔌 Is the adapter connected to the port? USB 3.0 (blue connector) - some models (for example, ASUS USB-AC68) require high tire speed.
• 📡 Is the antivirus blocking the function (for example, Kaspersky or Avast may block Wi-Fi Direct).
• 🔄 Is the mode turned on? Energy saving for adapter in Device Manager (tab Power management).

6. Method 5: Practice test on an Android smartphone

If you want to screencast from your smartphone, check support Miracast directly in Android settings. To do this:

1. Open Settings → Connected devices (or Screen).
2. Find the item Screencasting, Wireless Display or Smart View (the name depends on the manufacturer).
3. If the feature is enabled, the smartphone will begin searching for devices. If not, a message about unsupported devices will appear.

📱 Features for different brands:

• 🤖 Samsung: the function is called Smart ViewOn older models (before Galaxy S8) may require inclusion in Additional settings.
• 📱 Xiaomi: Wireless Display on the menu Screen. On some firmware (for example, MIUI 12) the function is hidden - you need to enable it Developer mode and find her there.
• 📳 Google Pixel: Cast in quick settings. Supports Miracast only on Android 10+.
• ⚠️ Huawei: since 2020, many models are deprived Miracast due to restrictions Google Mobile Services.

🔧 If the function exists but does not work:

1. Make sure your TV supports it. Miracast (not all Smart TV they do it, even with Wi-Fi Direct).
2. Try connecting to your TV via 2.4 GHz And 5 GHz separately.
3. Turn it off Bluetooth on a smartphone - sometimes it conflicts with Wi-Fi Direct.

7. Alternatives if your adapter doesn't support Miracast

If the checks have shown that your Wi-Fi adapter incompatible with Miracast, don't despair. Here are some working alternatives:

• 🔄 Google Cast (Chromecast): if you have Chromecast or TV with Android TV, use the function Broadcast in applications (YouTube, Netflix) or screen mirroring via Google Home.
• 🖥️ Steam Link: for broadcasting games and desktop from a PC to a TV (works even over a local network).
• 📡 USB adapters with Miracast support: buy an external module (eg. Microsoft Wireless Display Adapter or ScreenBeam Mini2).
• 🔌 HDMI cables: the most reliable way without delays (for example, USB-C to HDMI for modern laptops).

⚠️ Attention: if you choose external adapter especially for Miracast, please note:

• 🔌 Connection type: USB 3.0 mandatory for 5 GHz.
• 📡 Wi-Fi standard: adapters 802.11ac or 802.11ax preferable 802.11n.
• 🖥️ OS compatibility: some models (eg Netgear A6210) require manual installation of drivers in Linux.

FAQ: Frequently asked questions about Miracast

❓ Why is Miracast stuttering or lagging?

This is a typical problem when:

• 📡 Using 2.4 GHz (switch to 5 GHz).
• 🖥️ A weak processor on the transmitting device (for example, budget smartphones may not be able to handle Full HD).
• 🔌 Connecting the adapter to USB 2.0 (needed) USB 3.0 for stable operation).

Also check if other devices on the network (microwaves, wireless headphones) are interfering.

❓ Is it possible to enable Miracast on a MacBook?

No, macOS does not support Miracast at the software level, even if the adapter (for example, Broadcom BCM4360) is technically compatible. The alternative is to use AirPlay for broadcast on Apple TV or apps like Duet Display.

❓ Why can't the TV see my laptop when connected via Miracast?

Check:

• 🔄 Both devices must be on the same network (if a router is used) or in the same mode Wi-Fi Direct (if the connection is direct).
• 📡 The TV must support Miracast (not all Smart TV they do it, even with Wi-Fi).
• 🖥️ On the laptop in Settings → System → Project to this PC should stand Available everywhere.

❓ Which Miracast adapter should I buy if the built-in one doesn't support it?

Recommended models (2023-2026):

• 🥇 Microsoft Wireless Display Adapter — official solution, works out of the box with Windows.
• 🥈 ScreenBeam Mini2 - supports 4K and low latency.
• 🥉 TP-Link Archer T4U - a budget option with a chip Realtek RTL8812AU (drivers needed).

Avoid chip-based adapters Realtek RTL8188 or RTL8192 - they don't support Miracast.

❓ Can I use Miracast for gaming?

Technically yes, but with some caveats:

• ✅ Suitable for indie games or turn-based strategies (delay ~30–50 ms).
• ❌ Not suitable for shooters or racing (the delay is too high).

Better to use Steam Link (delay ~10–20 ms) or Parsec for cloud gaming.