The setting methods of all HDMI/DVI/VGA/DP high-definition video converters and video cables are basically the same. The following setting tutorial takes HDMI high-definition cable connection as an example, including Windows7/8/10/XP system, Apple Mac OSX system setting tutorial and answers to questions related to high-definition cable.

The content of the article is long. If you have the corresponding wire setting tutorial in the previous article, you can click the article below to go directly.

HDMI cable connecting computer and TV video tutorial

Teach you to connect projector and laptop with VGA cable

1. TV settings

First connect the TV and the computer with an HDMI cable, and use the TV's remote control to select the corresponding HDMI signal source.

Second, the computer settings

(1) Win7 setting method

1: Video settings

Four display modes can be set. Right-click "Screen Resolution" on the computer desktop, select the desired display mode in "Multiple Monitors" in the screen resolution window, and confirm.

① Duplicate these displays: The computer display screen is exactly the same as the TV screen.

②Extend these displays: The TV screen and the computer display screen display different content.

Open the content (pictures, videos, etc.) that needs to be played on the TV first on the computer, then hold down the left mouse button, and drag from the open content window to the right until it completely appears on the TV, that is, You can release the mouse, move the mouse to the left to the edge of the TV, you can return to the computer, and then you can open other content on the computer.

③ Only display the desktop on 1. 1 display has a picture, 2 display is a black screen.

④Only display the desktop on 2, display the picture on the 2 display, and display the black screen on the 1 display.

2: Audio Settings

Right-click the audio icon in the lower right corner of the computer, select "Playback Devices", right-click the video card audio, and set it as the default device, that is, the TV produces sound, and the speaker is set as the default device, that is, the computer produces sound.

(2) Win8, win10 setting method

1: Video settings

Right-click on the computer desktop and select "Display Settings".

Set the corresponding mode in the pop-up "Multi-Monitor" and confirm it.

2: Audio Settings

It is the same as the audio setting method of win7.

(3) Xp system setting method

1: Video settings

①Extended mode: Right-click the properties of the computer desktop - settings - click icon 2 - check "Extend the Windows desktop to this monitor"

②Copy mode: Set the control panel of the corresponding graphics card, right-click on the desktop - Properties - Settings - Advanced, click the corresponding graphics card options - Graphics Properties - Display Device, click "Multiple Displays", and select "Clone Display". (Note: The setting interface of different graphics cards is slightly different, but the setting method is the same)

2: Audio Settings

Right-click the audio icon in the lower right corner of the computer - playback settings, select the graphics card audio output, apply and confirm, and the audio can be transmitted to the TV.

(4) Apple system setting method

1: Video settings

①Extended mode: Go to the computer "System Preferences - Displays - Arrangement", two monitors can be detected, remove the hook of "Mirror Displays" in the lower left corner. (If the computer does not detect the external display, you can click "Detect Display" in the lower right corner to detect it)

Among them, the display screen with a white bar frame is the main screen, which can display the computer desktop icons; the other screen is the secondary screen, which only has the computer desktop background without icons. The main and secondary screens can be set by yourself, just drag the white bar above the main screen to the secondary screen.

Open the content (pictures, videos, etc.) that needs to be played on the TV first on the computer, then hold down the left mouse button, and drag from the open content window to the right until it completely appears on the TV, that is, You can release the mouse, move the mouse to the left to the edge of the TV, you can return to the computer, and then you can open other content on the computer.

②Mirroring mode: Go to the computer's "System Preferences - Displays - Arrangement", click "Mirror Display" in the lower left corner to check, and the display contents of the Mac and the external display are kept in sync.

2: Audio Settings

Go to the "System Preferences--Sound--Output" setting interface of the computer. Please select "Built-in Speaker" for computer output, please select "HDMI" output for TV output.

3: Resolution settings

Under "System Preferences," click "Displays." On the Displays screen, click to select "Scaling." In the listed resolutions, click to select the resolution you think is suitable, close the setting interface, a prompt window will appear, click and select "OK".

3. Answers to related questions

1. The computer does not respond after connecting to the TV.

Answer: ① Confirm whether the cables or converters are reversely inserted (some hdmi cables have different lengths, and the output device and input device cannot be inserted reversely, and the video converter also has positive and negative points, which cannot be inserted. opposite).

②Whether the TV has selected the corresponding signal source.

③ If it is connected to a desktop computer, confirm whether the desktop computer has a discrete graphics card. If there is a discrete graphics card, the interface must be connected to the discrete graphics card before it can be used.

④Re-plug the cable and restart the device.

⑤ Update the graphics card driver (Note: Apple computers cannot update the graphics card driver, but the system can be updated).

2. Why does the TV only have a background and no icons.

Answer: In this case, it is displayed in extended mode. In extended mode, the TV is an extension of the computer desktop. Only the background desktop has no computer icons. You can drag the pictures or movies on the computer to the right on the TV, so that the TV can be placed on the TV. Movies, the computer continues to surf the Internet or do other things. If you want the computer and the TV to display the same picture, please follow the tutorial to set the copy mode.

3. Why is my TV not full of screen (the TV has a black border).

Answer: ① The TV side uses the TV remote control to adjust the display ratio of the screen.

②Adjust the appropriate computer resolution.

③ On the computer graphics card interface, adjust the scaling ratio of the graphics card.

④ Update the graphics card driver. (Note: Apple computers do not need to update the graphics card)

4. Why does the TV have a color cast or snowflakes after the computer is connected to the TV?

Answer: ① Check whether there is dust or other dirt on the interface of the device, and wipe it with alcohol.

② If the computer or TV interface is not in good contact, it can be re-plugged and plugged in tightly.

5. The TV has only images and no sound.

Answer: Please follow the tutorial to set the audio output. After some computers are set, you need to restart the computer to take effect. If there is still no sound after restarting the computer, you can update the graphics card driver of the computer (Note: Apple computers cannot update the graphics card driver, but can be updated system).