What if the HDMI cable is connected to the TV and there is no sound?
Apr 15, 2022
What if the HDMI cable is connected to the TV and there is no sound? HDMI line transmits high-definition signal through HDMI interface of TV, computer, tablet, LCD, etc. In the process of application, some problems will be encountered more or less, among which the more difficult problem is that there is no sound after the TV is connected to the HDMI line. So, what if the HDMI cable is connected to the TV and there is no sound? Technicians will answer for you:
What if the HDMI cable is connected to the TV and there is no sound?
1. HDMI line quality problem. Poor quality HDMI line may affect audio transmission.
If the above problems are eliminated, it may be the quality problem of HDMI line. A good HDMI cable can be replaced.
2. The driver for the HDMI audio device is incorrect or unsuccessful.
If this is the case, please update or adjust the graphics card driver to a formal driver first.
Use the driver installation software to update the driver of the sound card of the graphics card board, and check whether the sound card of the motherboard conflicts with the audio of the graphics card. If so, you can disable the sound card of the motherboard first. Open the small speaker icon on the desktop to enter the audio option, set the speaker environment to HDMI form, and select the output form as PCM.
3. The audio driver for the video card is not activated and will result in no sound.
When the computer starts up, it enters BIOS settings and sets the HDMI audio option to enabled, that is, turn it on. However, many bios are opened with tacit permission, and there is no such setting item in BIOS.
4. Because the graphics card used has no built-in audio module, there is no digital audio signal output at all.
In this case, we can connect the SPDIF output of the main board sound card with the SPDIF input of the graphics card through wires, and connect it according to the method shown in the structure diagram of the graphics card. If you use an ATI graphics card, you only need to specify the tacit device as the audio output of the graphics card type in the audio settings.
5. If DVI to HDMI conversion is used, additional audio lines are required to transmit audio.
Because the DVI interface does not have the function of transmitting audio signal, the audio signal transmitted from HDMI interface will be lost automatically.
