修復 Windows PC 無法連線到電視的問題

The computer is connected to a Smart TV using an HDMI cable. Using HDMI, you can have a home theatre setup by connecting an HDTV or video projector to a computer. This cable will help in connecting to components for both audio and video. However, users have reported that sometimes computers do not recognize TV. If you are facing your PC won’t connect to TV issue, then you are in the right place. This article on how to fix computer won’t connect to TV issue will resolve the issue.

How to Fix Windows 10 PC Won’t Connect to TV HDMI

Whenever an external device is connected to the computer, Windows 10 sets the device ready to work with that device. For instance, when you connect a pen drive, you will see a prompt for File Explorer to run it. The process is similar when you connect a TV. If your computer fails to recognize the TV, then follow any of the methods below to resolve the issue.

Why Computer won’t Connect to TV?

Below are some of the reasons why your PC won’t connect to TV:

• 過時的驅動程序
• Issues with the HDMI cable
• Issues with HDMI port

基本故障排除技巧

Before trying advanced troubleshooting methods, let us try some of the basic troubleshooting methods:

• Loosen up the HDMI coil if it is coiled tightly.
• Since HDMI is sensitive, check whether the pins on the HDMI are damaged.
• Use another HDMI cable.
• 刪除其他連接 of the TV using the HDMI hub or switch.
• 嘗試 connect HDMI cable directly to the TV.
• 嘗試 connect to another HDMI port if your TV has multiple ports.
• Discharge the computer by removing AC adapters, power cables, and peripheral devices.
• Disconnect all ports and restart your computer and TV. Then, reconnect them.

Method 1: Enable Projection Mode

If Windows 10 has failed to automatically detect the connection to the TV, then you can enable the projection mode:

1。 按 使用Windows + P 鍵 simultaneously on the keyboard.

2。 選擇 延長 to display your computer screen on the TV.

注意： 您也可以選擇 複製.

Method 2: Select Input Source on TV

If a TV has more than one display port, it might not detect the incoming video signal automatically and cause Windows 10 DisplayPort Not Working issue and cause Windows 10 DisplayPort Not Working issue. In this case, you can select input on the TV. Follow the steps below:

1。 按 輸入來源選單 上的按鈕 電視遙控器.

2。 選擇 HDMI. This will display the screen of the computer.

相關閱讀： How to Convert Coaxial Cable to HDMI

方法 3：運行硬件和設備疑難解答

If there is any issue with the PC hardware, running the troubleshooter will automatically diagnose the problems and fix them. Follow the steps written below to run the Hardware and Devices Troubleshooter to fix Computer won’t Connect to TV issue.

1。 按 Windows 關鍵，輸入 命令提示符 並點擊 以管理員身份運行.

2。 點擊 是 ，在 用戶帳戶控制 及時。

3. 輸入命令 msdt.exe -id設備診斷 並按下 Enter.

4。 點擊 高級 選項，如圖所示。

5。 檢查 自動應用維修 選項並單擊 下一頁.

6。 點擊 下一頁 繼續。

7. The troubleshooter will now run. If problems are detected, it will display two options:

• 應用此修復
• 跳過此修復

8. 在這裡，點擊 應用此修復和 重新開始 您的電腦.

If the issue occurs on your PC even after running the troubleshooter, then you can try updating the video driver.

方法 4：更新顯示驅動程序

Outdated or damaged video drivers can also be one of the reasons behind PC won’t connect to TV issues. Follow the steps below:

1。 點擊 開始 和類型 裝置經理。 點擊 已提交.

2。 雙擊 顯示適配器 擴大它。

3. 右鍵單擊您的 顯示適配器 並選擇 更新驅動程序.

4.接下來，選擇 自動搜索驅動程序.

5A。如果驅動程式已經更新，則會顯示 最適合您裝置的驅動程式已安裝.

5B. If any updates are available then, Windows will install them automatically.

6. After this process, 重新開始 你的電腦.

相關閱讀： 如何在智慧電視上安裝 Kodi

Method 5: Reinstall Driver in Compatibility Mode

If you face PC won’t connect to TV issue, then you have to use the driver in compatibility mode for a previous Windows version. Follow the steps below.

1。 打開 “設備管理器” 並去 顯示適配器 如圖所示 方法4.

2.右鍵單擊 video device 並選擇 卸載設備.

3。 檢查 刪除此設備的驅動程序軟件 option. Then, click on 卸載 button in the confirmation prompt.

4. 重新啟動您的電腦 after uninstalling the driver.

5. Next, download the appropriate driver from the 製造商的網站.

注意： For example, visit 英特爾公司 官方網站 to download the latest USB driver for 英特爾圖形.

6. Once the file is downloaded, go to the download location and select the 安裝文件.

7.右鍵單擊 Exe的。 setup file and then select 氟化鈉性能 從菜單。

8.現在，轉到 相容性 標籤。

9. Next, check the box next to 在兼容模式下運行此程序.

10. From the drop-down menu, select a previous Windows OS version.

11。 點擊 登記 進而 OK 保存更改。

12。 最後， 重啟你的電腦 一次。

方法6：更改顯示設置

Changing the display settings to the recommended settings will help resolve computer won’t connect to TV issue. Follow the steps below:

1。 打開 設定 按下 Windows + I鍵 同時進行。

2。 選擇 系統 設置。

3. In the left-hand menu select 顯示屏.

4. 在這裡，設定 推薦的 的選項 比例和佈局和 顯示分辨率.

5。 現在，點擊 高級顯示設置.

6。 選擇 recommended and required rate （例如 60.008赫茲） 在下面 刷新率.

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Method 7: Perform Factory Reset on TV

If none of the methods above worked, then factory reset your TV to resolve your PC won’t connect to TV problem. Follow the given steps to perform factory reset on TV.

注意： The settings may vary depending on the manufacturer of the TV. Below settings and methods are based on the Samsung R series.

1. Press the Home button on the TV remote.

2。 選擇 設定，然後 支持 在左側窗格中。

3. 在這裡，選擇 自我診斷 選項。

4. 現在，選擇 重設 選項並輸入 密碼.

5。 最後，選​​擇 是 確認。

常見問題（FAQ）

Q1. How can I check whether my display output is working well?

答。 連接後 HDMI線，右鍵單擊 桌面 並選擇 個性化. Here, you can see your 智能電視 as a second monitor.

Q2. Do I have to reset my PC to resolve the computer that did not recognize the TV issue?

答。不, there is no need to factory reset your PC. If none of the troubleshooting methods worked, then you can reset your Smart TV as a last resort.

Q3. What are the different ways to connect a PC to a TV?

答。 You can connect your computer to the TV using HDMI cable, DVI or VGA, or Wi-Fi. Using Wi-Fi to connect your computer to TV depends on the manufacturer & TV model.

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We hope our article was helpful and you were able to fix Windows PC won’t connect to TV issue was helpful to you. In case, you have any suggestions or queries regarding this article, feel free to reach out to us in the comment section below.