Mirror your PC screen to your LG TV via Wi-Fi: A complete guide with troubleshooting steps

Wirelessly transmit images from your computer to a large TV screen LG saves time on cables and opens up new possibilities for work, gaming, or content viewing. However, not all users know that for stable streaming via Wi-Fi It's not enough to simply enable the feature on both devices—it requires proper network configuration, protocol selection, and sometimes even manual adjustments to settings.

In this article we will look at three main methods screen sharing (including hidden functions) LG Smart TV), we will compare them in terms of speed, latency and compatibility with different PC models, and also give unique recommendations for eliminating lags and connection breaks, which you won't find in standard instructions. We'll pay special attention to issues with sound, screen resolution, and conflicts between Wi-Fi and Bluetooth.

1. Network preparation: why regular Wi-Fi is not suitable for broadcasting

The first mistake most users make is trying to broadcast their screen through a regular home network, where smartphones, smart speakers, and other devices operate simultaneously. Wireless live video transmission requires:

• 📶 Dual-band router (5 GHz required for 4K/60fps)
• 🔄 Channel with minimal interference (use analyzers like WiFi Analyzer)
• 🚫 No background downloads (torrents, cloud synchronization)
• 🔌 Wired connection of a PC to a router (optional, but reduces lag)

If your TV LG supports Wi-Fi Direct (check the menu) Network → Wi-Fi Direct), you can create direct connection between the PC and TV, bypassing the router. This reduces latency but cuts off internet access on both devices during streaming.

Critical parameter: network bandwidth. For Full HD (1080p) you need at least 15 Mbps, for 4K - from 25 MbpsYou can check your current speed through Settings → Network → Network Status on TV or service Speedtest on PC.

⚠️ Attention: If your TV LG released before 2017, it may not support modern codecs H.265 (HEVC). In this case, 4K video will experience artifacts or automatic downscaling when broadcasting.

2. Method 1: Miracast (built-in wireless projection in Windows)

Protocol Miracast — the most universal broadcasting method for owners Windows 10/11It works without any additional software, but requires TV support. Check compatibility:

• 🖥️ On PC: Open Settings → System → Display → Connect to a wireless displayIf this option is active, your computer supports Miracast.
• 📺 On TV LG: go to Settings → Network → Miracast/Screen Share (the name may differ depending on the model).

Step-by-step instructions:

1. Turn on the TV mode Screen Share (usually in the section Net or Connections).
2. On PC, click Win + K and choose yours LG TV from the list.
3. Confirm the connection on both devices (you may be asked to enter a PIN).
4. Select display mode: Duplicate, Expand or Second screen only.

PC and TV are connected to the same 5 GHz Wi-Fi network|

VPN and proxy are disabled on PC|

Updated graphics card drivers (especially for Intel UHD Graphics)|

The TV is not in power saving mode-->

If the screen is not broadcast:

• 🔄 Reboot the router and both devices.
• 🛠️ Update your TV firmware via Settings → Support → Software Update.
• 🖱️ For laptops with Intel Wi-Fi: install the driver Wireless Display from the manufacturer's website.

⚠️ Attention: On some models LG OLED (for example, series C1/C2) Miracast is unstable due to a conflict with the technology Alpha 9 Gen4The solution is to use alternative methods (see section 3).

3. Method 2: LG Smart Share (proprietary multimedia solution)

Function Smart Share from LG optimized for broadcasting media files (videos, photos, music), but with limited PC screen support. However, it could be an alternative to Miracast for older TV models.

How to enable:

1. On TV: Settings → Network → Smart Share → Enable.
2. On PC: Install the program LG Smart Share (download from official LG website).
3. Launch the program and select your TV from the list of devices.

Smart Share Limitations:

• 🎮 Not suitable for gaming (high latency).
• 🖥️ Doesn't broadcast the desktop - only individual files.
• 🔊 Sound is transmitted only when playing video/music.

4. Method 3: Steam Link (for gaming and low latency)

If you need minimal delay (critical for gaming or drawing on a tablet), use Steam LinkThis method requires:

• 🎮 Installed Steam on PC.
• 📱 Applications Steam Link on TV (available in LG Content Store).
• 🌐 Stable 5 GHz Wi-Fi or wired PC connection.

Setting:

1. Install Steam Link to TV via LG Content Store.
2. Launch Steam on PC and turn it on Settings → Remote Play → Enable Remote Play.
3. Connect the gamepad to your TV (via Bluetooth or USB).
4. In the appendix Steam Link On TV, select your PC from the list.

Advantages:

• 🎯 Delay 10–30 ms (vs. 50–100 ms for Miracast).
• 🖥️ 4K/60fps support on compatible models.
• 🎧 Audio transmission without additional settings.

How to reduce lag in Steam Link?

Use a wired connection between your PC and the router (even if the TV is connected via Wi-Fi).

In Steam Link settings, select Speed ​​priority instead of Quality Priority.

Disable background processes on your PC via Task Manager (especially antiviruses and cloud synchronization).

5. Troubleshooting: Lag, No Sound, Low Resolution

Even with proper setup, users still encounter common issues. Let's look at their causes and solutions:

🐢 Video lag and stuttering

• 📶 Weak Wi-Fi signal: Move the router closer to the TV or use Mesh system.
• 🖥️ PC overload: Close background programs (especially Discord, Telegram (in video call mode).
• 🔧 Suboptimal Miracast settings: V Settings → System → Display → Graphics select Better performance.

🔇 No sound

• 🎧 Check if the TV is selected as the audio output device in Control Panel → Sound.
• 🔊 For LG OLED 2020+: Update your firmware - older versions had a bug with HDMI ARC during wireless broadcasting.
• 📵 If you use Steam Link, go to Settings → Audio and select Transmit all sound.

📺 Low resolution (e.g. 720p instead of 4K)

• 🔍 Check your display settings in Windows: Settings → System → Display → Resolution.
• 🔧 For NVIDIA: V NVIDIA Control Panels turn it off Frame rate limitation.
• 📡 If you use Wi-Fi 4 (802.11n), maximum resolution is 1080p. For 4K you need Wi-Fi 5/6.

6. Alternative solutions for Mac and Linux

To the owners Mac And Linux Not all methods described above are available. Let's look at some working options:

For Mac (macOS)

• 🖥️ AirPlay: works only with TVs LG 2019+ years (series SM9X, OLED9 and newer). Turn on AirPlay in TV settings (General → AirPlay).
• 🌐 ApowerMirror: third-party software with support Wi-Fi Direct (paid, but there is a trial period).

For Linux

• 🐧 Scrcpy: originally for Android, but with the patch it supports broadcasting to LG TV through ADB.
• 🖥️ GNOME Screen Cast: built-in function in the environment GNOME (requires support) PipeWire).

Command to check Miracast support in Linux:

hwinfo --wlan | grep -i miracast

⚠️ Attention: On Linux broadcast screen on LG TV often requires manual compilation of the kernel with patches for Intel Wi-FiReady-made solutions (for example, KDE Connect) work unstably.

7. Comparison of methods: which one to choose for your tasks

The choice of broadcast method depends on your goals:

Additional selection criteria:

• 💻 For laptops with a weak Wi-Fi adapter it is better to use Steam Link or wired connection.
• 📺 For LG OLED 2022+ years (C2, G2) is optimal Wi-Fi 6 + Miracast.
• 🎮 For cloud gaming (GeForce Now, Xbox Cloud) wired PC connection required.

FAQ: Frequently asked questions about screen mirroring on LG TV

My LG TV isn't showing up in the list of devices to connect to. What should I do?

1. Make sure that the TV is in the "Off" mode. Screen Share or Miracast.

2. Reboot the router and both devices.

3. Check if your model supports LG Miracast (a list of compatible models is available on the LG website in the support section).

4. If you use Windows 10, update your Wi-Fi adapter driver via device Manager.

When streaming via Miracast, the video lags, even though the internet is fast. What's the problem?

Miracast uses local network, not the internet. The problem could be:

- Overloaded Wi-Fi channel (try changing the channel to 5 GHz in the router settings).

- Weak Wi-Fi adapter of the PC (for example, built-in adapters in budget laptops are often limited 1x1 MIMO).

- Conflict with Bluetooth (disable Bluetooth devices during the broadcast).

Is it possible to mirror my PC screen to LG TV via USB cable?

No, LG Smart TV don't support screen mirroring via USB. However, you can:

- Use USB to connect the keyboard/mouse to the TV (if there are ports).

- Transfer files via USB drive (but not live screen).

To broadcast your screen, you need a wireless connection (Wi-Fi) or an HDMI cable.

How to stream audio from a PC to an LG TV separately from video?

If the video is transmitted via HDMI/Miracast, but you want to output the sound to other devices:

1. In Windows: Settings → System → Sound → Select output device.

2. For Bluetooth headphones: connect them directly to the TV via Settings → Sound → Bluetooth devices.

3. Use Virtual Audio Cable to separate audio streams (for advanced users).

Does my LG TV support 4K streaming over Wi-Fi?

It depends on:

- TV models: only 2018+ series (SK8X, SM9X, OLED8 and newer) support 4K over Wi-Fi.

- Wi-Fi standard: needed 802.11ac (Wi-Fi 5) or 802.11ax (Wi-Fi 6).

- Codecs: TV must support H.265 (HEVC).

Check your model's specifications on the LG website or in the TV menu: Settings → General → TV Info.