HDMI Cable to Connect TV and Computer Common Problems and Solutions

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Nowadays, TV screen size is generally 46″, 52″ or larger, far better than a computer screen, in order to achieve better video or game screen effect, many people use HDMI high-definition cable to connect the TV to the computer to use. So, what are the common problems in the process of use?
Q1:How to solve the problem of not being able to display the screen after connecting a computer or TV with an HDMI cable?
1, please check whether the TV signal input channel is adjusted to “HDMI input”, first switch the TV input settings. Path: Menu – input – signal source – interface, according to the HDMI cable and TV socket (maybe different brands have 1-5) to choose from.
2, the general computer default for the monitor output alone, so switch the video to be set on the computer, the computer resolution to adjust to the TV initial requirements resolution and refresh rate, path: desktop right-clicks the mouse – Properties – Settings – Extended mode. Generally set the computer’s resolution to 1024 * 768, a refresh rate of 60HZ, connected, and then adjust the TV resolution.
3, confirm the connection is a laptop or desktop. If it is a desktop computer, with a separate graphics card, you need to connect the independent graphics card, and it is best to update the graphics card driver. As well as confirm whether the computer detects the dual screen, if it is detected, you can adjust the computer resolution and refresh rate to try. If it is a laptop, you need to switch the output screen, different models have different shortcut keys. | port| style, through the Fn + | port| keyboard combination, the second monitor output opens, and switches, before the second monitor signal output to the TV. Some computers need to be shut down and connected or restarted after connection.
Q2:Can I cut the HDMI cable and connect it myself?
HDMI cable is different from the network cable, the internal structure is complicated, so cutting and reconnecting it will significantly affect the signal quality, so it is not recommended to connect it by yourself.
HDMI extension cable is a male-to-female interface that can be extended for short distances. HDMI network extender consists of two parts: a transmitter and a receiver, with both ends connected to the HDMI cable and a network cable in the middle, which can be extended by 60-120m.

Q3: After successfully connecting the computer and TV with HDMI cable, there is only image but no sound on TV
HDMI connection cable is able to transmit video and audio at the same time. There is an audio signal converter in the HDMI transmission chip of the computer, and the driver of the device should be installed correctly, then the audio signal can be transmitted normally through the HDMI interface and the HDMI cable. Therefore, we must first determine whether the driver is correct. After confirming that it is correct, we can select HDMI graphics card built-in sound card as the default in the computer control panel – Sound and Audio Settings – Sound Playback.
Q4: When you choose the extended mode, the desktop on the TV is only in the middle of the screen and does not cover the screen
In the extended mode, the TV is point-to-point display mode, the resolution on the TV is 1920 x 1080, while the actual resolution of the computer desktop picture does not reach 1080P, so the picture on the TV does not cover the screen, and in the middle.
HDMI cable as a medium to connect the computer to the TV/projector plays a very important role in the connection, so be sure to buy a high-quality HDMI cable, low-cost non-standard network cable brings not only inconvenience of use, but also may cause damage to the connected electronic devices. Superior HDMI high-definition cable, using high-purity oxygen-free copper, multiple shielding, signal stability, strong anti-interference, high-definition visual effects true restoration.

Q5:After the computer and TV are connected, the TV is off-color or has snowflakes?
This situation may be caused by poor contact between the TV and the computer’s HDMI socket, but also because the interface is not used for a long time exposed to moisture, or plugging frequently caused by loose poor contact, it is recommended to change other interfaces for testing.

Q6:After the successful connection of the computer and TV with HDMI cable, the TV does not appear on the computer desktop icon

There are two kinds of computer and TV connection: “copy mode” and “extended mode”. Copy mode” under the computer and TV display the same content, what the computer displays, what the TV displays; and “extended mode”, the TV as an extended display will not display the status bar, shortcut buttons, only a desktop wallpaper, at this time, the computer can also carry out other operations, the TV screen The screen on the TV and the monitor are completely independent and do not interfere with each other. When the computer and TV are connected using HDMI cable, the default is generally “extended mode”, to display the computer desktop on the TV, select “copy mode”, or the TV monitor as the main monitor can be.

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