Nowadays TV sets, computers, flat panels, LCD monitors, etc. all have HDMI interfaces, which can directly transmit high-definition signal signals through HDMI cables. We used the VGA cable most often before, but as the resolution of display devices increases, it will cost more to make VGA support more high-definition displays. Therefore, VGA cables rarely enter the 1080P high-definition market at present. On a high-definition 1080P display device, there must be an HDMI interface, which can be connected to other devices and transmit signals through the HDMI cable. In the process of using, you will encounter some problems more or less, one of which is more difficult to solve is the problem of no sound on the TV after connecting the HDMI cable. Regarding the situation where there is no sound on the TV after connecting the HDMI cable, the most common situation is that after the connection with the computer, the TV screen can be displayed normally, but there is no sound on the TV when the computer is playing audio. I did not have this problem when I tested it with the HDMI cable. My computer’s graphics card is ATI with a built-in HDMI audio device, so the sound can be played normally when connected to the TV. For the phenomenon that there is no sound after connection, there are the following reasons and solutions for your reference.
Reason 1: If you are using a DVI to HDMI adapter cable, you need to use an audio cable to transmit audio. Because the DVI interface does not have the function of transmitting audio signals, the audio signal transmitted from the HDMI interface will be automatically lost.
Reason 2: If the audio driver of the graphics card is not activated, there will be no sound. When the computer starts, enter the BIOS settings and set the HDMI Audio option to Enable, which is to turn it on. However, many BIOS are turned on by default, and there is no such setting item in the BIOS.
Reason three: The HDMI audio device driver is incorrect or is not successfully set up. If this is the case, first update the graphics card driver or adjust to the official driver. Use the driver installation software to update the onboard sound card driver of the graphics card. Check whether the motherboard sound card conflicts with the graphics card audio. If so, you can disable the motherboard sound card first. Open the small speaker icon on the desktop to enter the audio options, set the speaker environment to HDMI mode, and select the output mode as PCM.
Reason 4: Because a graphics card without a built-in audio module is used, there is no digital audio signal output at all. In this case, we can connect the SPDIF output of the motherboard sound card and the SPDIF input of the graphics card by using a wire, and connect according to the way indicated in the graphic card structure diagram. If you use an ATI graphics card, you only need to specify the default device as the audio output of the graphics card model in the audio settings.
Reason 5: The quality of the HDMI cable. A poor HDMI cable may affect audio transmission. If the above problems are eliminated, it may be the quality of the HDMI cable, just change to a good HDMI cable.
.
What features you consider more when you choose an university laptop for project? Performance, portability, screen quality, rich slots with rj45, large battery, or others? There are many options on laptop for university students according application scenarios. If prefer 14inch 11th with rj45, you can take this recommended laptop for university. If like bigger screen, can take 15.6 inch 10th or 11th laptop for uni; if performance focused, jus choose 16.1 inch gtx 1650 4gb graphic laptop,etc. Of course, 15.6 inch good laptops for university students with 4th or 6th is also wonderful choice if only need for course works or entertainments.
There are many options if you do university laptop deals, just share parameters levels and price levels prefer, then will send matched details with price for you.
Other Education Laptop also available, from elementary 14 inch or 10.1 inch celeron laptop to 4gb gtx graphic laptop. You can just call us and share basic configuration interest, then right details provided immediately.
University Laptop,Laptop For University Students,University Laptop Deals,Recommended Laptop For University,Laptop For Uni
Henan Shuyi Electronics Co., Ltd. , https://www.sycustomelectronics.com