What should I do if the Win8 system uses HDMI to connect to the TV without sound?

Many users will encounter all kinds of embarrassment when they use the HDMI interface for the first time. It is not that the computer is connected to the TV, there is no sound or no image, or the interface is not found, or simply look at the serial port behind the TV. . So what should I do if the Win8 system uses HDMI to connect to the TV without sound? Let's take a look at the detailed solution together with Xiaobian.

Cause analysis:

First, the sound card setting error

1, the sound output device error, generally connected to the HDMI sound will automatically switch the HDMI interface output, but Some machines need to be set manually, as follows:

2. Right click on the sound icon and select the playback device, as shown below:

3. Select the playback device After that, the pop-up window is as shown below:

4, the default is the speaker on the computer itself, there is Realtek Digital Output device below, this is the audio output of HDMI, right click and select to set to The default device, as shown below:

5, after setting, the sound will automatically switch to the HDMI output. The TV can have a sound.

Second, HDMI is the graphics card output interface, the graphics card driver installation is not correct

1, the viewing method is to open the device manager, as shown below:

2, check the sound, video and game controllers and display adapters have problems, as shown below:

3, it is best to be able to re-download the corresponding graphics driver. Reinstall it completely. Test again if there is a problem. If you still have to consider a system failure or hardware failure. It is best to reinstall the system test first.

The above is a solution to the lack of sound on the HDMI interface of the computer connected TV. The HDMI port on your computer can be connected not only to the TV, but also to the projector's scanner. Thank you for reading, please pay attention to this website for more content!