Why doesn't hdmi transmit sound to the TV. There is no sound via HDMI to the TV from the computer
Modern smart TVs SMART TV most often have HDMI input for connecting to a computer or laptop. As you know, an HDMI cable can transmit not only an image, but also sound. People often ask me the question: “Why, when connecting a TV via an HDMI cable, does the sound come from the computer speakers and not from the TV?” Some users who are completely inexperienced in communicating with technology ask over the phone or via ICQ to clearly tell them where and in what sequence they should press so that the sound comes from “where it needs to come from.”
In most cases, it’s possible to explain “what’s what” over the phone, and then accept a stream of verbal thanks and a certain amount of quite material “goodies.” But there are also “questioners” who are afraid to even try something tune and almost beg you to come see them in person. Among these there are people whom we still have to go to because of our relationship with them. After the Nth time I got a little bored with it, and an illustrated instructions for setting up audio output via HDMI. Due to the fact that most people have Windows 7 installed (in the XP version everything is very similar), the setup is described with an eye to this operating system.
The essence of the instructions is what is needed on a computer or laptop set up TV(which is defined by the system as completely specific device, not soulless speakers) default audio output device.
How to set up audio output to TV via HDMI cable.
1. After connecting the TV to a computer or laptop, right-click in the system area (system tray, where the clock is, bottom right) on the sound icon and select “ Playback devices».
2. In the window that opens, where devices that can play sound are listed, find your TV. As you can see in the screenshots below, I have an LG SMART TV, and you are looking for yours.
4. In conclusion click "OK" to close the dialog box.
All! Now sound is output through the TV via a digital channel (cable). If you don’t find your TV in the list of devices (step 2), then try restart your computer or laptop with a connected HDMI cable - in most cases, TV becomes available in the default device selection list for audio output. As you may have noticed, the steps are very simple, even the most unprepared user can perform them, but some are afraid to click anywhere other than launching movies and solitaire. Don't be afraid “go through” the system settings, but under one condition - carefully read what the system writes.
The HDMI standard makes it easy to display image and sound from a laptop or computer to an external monitor or TV. To transmit picture and sound, just connect the computer to the device via a cable. But, as with any other data transfer standard, problems can arise with HDMI, including due to incorrect Windows settings. One of the common errors that users have to face is the lack of sound on the TV when connecting a computer to it via HDMI. To correct this problem There are several ways, which will be discussed below.
Please note: Before proceeding with the tips below, make sure that the lack of sound on the TV when connecting a computer to it via HDMI is not due to the settings of the TV itself. Often the reason is quite banal - the TV sound is reduced to zero or the “Silence Mode” (Mute) is turned on.
Selecting the correct playback device
When you connect an external information output device - a TV or monitor - to your computer via HDMI, the Windows operating system should automatically determine that the default sound will be broadcast through the connected source. If this does not happen for one reason or another, the user needs to independently assign the TV as the audio playback device. To do this:
Important: If you don’t see a connected monitor or TV in the list of available playback devices, right-click in any empty space and check the “Show disconnected devices” and “Show disconnected devices” checkboxes. Try to find a connected monitor/TV among them.
In a situation where even among hidden devices it was not possible to detect a TV/monitor connected via HDMI, you can try the steps described below.
No sound via HDMI on TV due to hardware problems
The second most common reason for no sound when connecting a computer to an external monitor/TV via HDMI is a hardware problem. It can manifest itself in two cases:
Installing drivers for audio output via HDMI
Another reason why there is no sound via HDMI on the TV may be the lack of drivers. Most often, this problem occurs if, when installing video card drivers, the user manually selected the components to be installed and disabled the installation of drivers for HDMI.
You can find out whether drivers are installed to output audio via HDMI to your computer in Device Manager. To do this you need:
If the list of available audio devices only includes sound card, you need to load the drivers for the video card onto your computer and install those components that are responsible for transmitting sound via HDMI. To do this, go to the Intel, NVIDIA or AMD website and download the latest video card drivers, then run their installation. At the installation stage, select manual mode and be sure to check “HD Audio Driver” among the available drivers.
Please note: The driver responsible for audio output via HDMI is called “HD Audio Driver” on the NVIDIA video card. On other maps it may be called differently.
After installing the necessary drivers, restart your computer and try connecting it again via HDMI to the TV.
When connecting a TV to a computer, tablet or other device via an HDMI cable, many users encounter sound problems. Its absence when there is an image on the TV screen can be due to both software and hardware malfunctions. Moreover, the source of the problem can be both the computer and the television receiver. Here are solutions to the most common problems that lead to sound problems.
TV settings
Modern TVs are capable of reproducing sound from different sources, for which their designs provide appropriate audio connectors. These include TRS (standard connectors, like on a computer), CVBS (composite connector), "Y/Pb/Pr" (three-component RCA), SCART (European standard for connecting multimedia devices) and, of course, HDMI - digital transmission interface video and audio signals via a digital communication channel.
No matter how many audio inputs are provided on the TV, only one of them can be used at a time. Which audio channel the TV receiver will receive sound from is specified in its settings. If you want the sound to come from the HDMI input, you should set the appropriate operating mode in the TV settings.
This is not difficult to do: on most TVs, you can get to the sound settings from the main menu. All you need to do is specify the HDMI input as the audio source. If everything is normal, the TV receiver will immediately begin to play the audio stream coming from the computer.
Windows Playback Device Settings
Several audio playback devices (audio outputs) can be connected to the same computer at the same time. These can be not only externally connected devices (for example, additional audio cards), but also those built into the motherboard. Their list also includes the HMDI interface, through which not only a video image can be transmitted, but also sound.
No use special programs operating systems Windows is only capable of playing sound through one audio output. For example, if a regular analog output is selected as the default playback device, then the sound will be transmitted through it. Typically, Windows automatically detects which audio output is connected to external equipment - speakers, TV, etc. The system then sets it as the default audio device. However, for various reasons this may not happen.
The solution to this problem is to manually reconfigure Windows audio settings. All that is required is to use the HDMI interface as the main audio playback device:
- Turn on your TV and connect it to the HDMI port on your computer.
- Open "Panel Windows management" and go to the "Hardware and Sound" section.
- Click on the "Sound" element and the Windows audio settings window will open.
- Go to the "Playback" tab.
- All audio playback devices available on the computer will be displayed on the screen.
- Next, you need to find the device responsible for transmitting sound through the HDMI output. Usually its name corresponds to the brand of the connected TV, for example, “LG”, “Samsung” or “Philips”. HDMI output can also be referred to as "HD Audio HDMI out", "High Definition Audio"etc.
- Right-click on the HDMI device icon, then select "Set as Default".
- If everything is normal, sound will immediately start coming from the TV speakers.
- If you have multiple playback devices in the Windows audio settings, try turning them on by default one by one until the TV starts playing audio from your computer.
If there are no HDMI outputs in the list of available playback devices, follow the instructions:
- Right-click on an empty area of the settings window and check the “Show disconnected devices” and “Show disconnected devices” checkboxes.
- If the HDMI devices are functioning normally, their names should appear in the list.
- Pay attention to the inscription under the names of the displayed devices. If it says "Disabled", right-click on the corresponding icon, then select "Enable".
- Now all that remains is to check the “Set as default” checkbox on the device you just turned on.
If the icons of the displayed devices display the message “Not currently available,” the problem may be a driver problem or a hardware problem with the HDMI cable, HDMI connector on your computer, or TV.
Driver problems
The HDMI output on a computer can be built-in or be part of an externally connected or integrated (as in laptops, for example) video card. In the second case, to transmit audio and video through this interface, you need to have a installed driver from the video card. If the HDMI output has a built-in design, this means that for it to work you will need a separate driver from the HDMI controller. In addition, there are also externally connected HDMI controllers, but we will not consider them in this article.
In any case, problems with the HDMI driver may result in no sound on devices connected to the computer. external devices, in our case - TV. Putting the driver in order is a rather painstaking undertaking; it’s easier to install it again. But first it’s better to delete the existing one software:
- Press the "Win + R" keys on your keyboard, then enter "devmgmt.msc" without quotes in the window that opens and click the "OK" button.
- The Device Manager window will appear on the screen.
- Open the "Sound, Game and Video Devices" section.
- Among the displayed items, you should find an HDMI audio playback device. There may be several of them.
- The image above is an example of HDMI devices that are a component of an NVIDIA graphics card. Whatever version the HDMI interface has, “High Definition Audio” will appear in its name.
- Now you need to remove the HDMI device (or all) by right-clicking on it and selecting the “Remove device” menu item.
- Please note that the "Audio, Gaming and Video Devices" section may also list other audio playback devices (such as "VIA HD Audio" in the image above). There is no need to delete them.
After removing devices from the system, you can begin installing a new driver. If your computer has a built-in HDMI controller, then you should look for a driver for it on the website of the motherboard or laptop manufacturer. But in most modern PCs the HDMI interface is integral part video cards, even when it comes to laptops. Therefore, the appropriate driver must be installed. It can be found on the video card manufacturer's website. Here are the instructions for installing the NVIDIA video adapter driver:
- Go to the website http://www.nvidia.ru.
- Open the "Drivers" section in the top menu of the page.
- In the "NVIDIA Driver Downloads" section, find required driver by selecting the appropriate items in the drop-down menus - “Product Type”, “Series”, “Family”, etc.
- If you do not know the name of the installed video card, follow the link http://www.nvidia.ru/object/gpureader-faq-ru.html. Follow all the instructions on the page and the site will automatically select the required driver.
- Install the video card driver, along with it the software necessary for the HDMI audio device will be installed.
For video cards of the family AMD drivers can be downloaded from the link https://support.amd.com/ru-ru/download.
Hardware faults
If manipulations with Windows audio settings and HDMI device drivers do not lead to the desired result, there may be a hardware problem with the computer or the TV itself. The most optimistic scenario is that the HDMI cable is physically damaged. This problem can be easily resolved by simply replacing the cable. If the cause of the problem is damage to the HDMI socket on your computer or TV, it is better to take the equipment for repair. However, a way out of this situation can be found.
In the first chapter of the article, it was mentioned that television receivers may also have other inputs for connecting audio playback devices, in this case a computer. If in your case there is a green TRS socket, then you can try using it to transmit sound from the PC to the TV.
To do this, just purchase a TRS extension cable with plugs at both ends:
After connecting the cable, go to the TV settings and select the TRS input as the main connector for receiving audio (how exactly to set this up should be indicated in the TV instructions). On your computer, select a standard audio card as the default audio playback device.
If you have a large LCD or plasma TV, sooner or later you will want to connect a laptop or computer to it to watch a movie, or maybe work or just feel what it’s like :) The temptation is not small and your hands are itching.
In the first part of the article I will talk about possible ways connecting devices, in the second part we’ll talk about video card settings in Windows 7/8/10, and in the third part I’ll tell you how to output sound via HDMI. At the end there is a visual video describing everything that happens.
HDMI cables, connectors, adapters
I tried working on a 32” Toshiba TV with a resolution of 1366x768 and I didn’t really like working with text, although designers and gamers will probably appreciate this ability to connect equipment. In the simplest case, only one is needed HDMI cable, who need to connect a computer and a TV. The cable has identical connectors at both ends:
You can buy an inexpensive cable, just make sure that if you plan to use the 3D mode, the cable must be HDMI 1.4 or higher. Now you only need to find the HDMI jack on the back of the TV and the same one on the computer. This is what the sockets on the back of the TV look like:
And approximately this socket should be looked for on the back side of the system unit:
It is located directly on the video card next to the connection for VGA monitor or DVI. With one correction, if you don’t have one, then the nest will be located on motherboard, simply put, somewhere near the USB ports, but it will look the same.
It’s easier with laptops; their HDMI socket looks the same, except that in different models it’s located on different sides:
Compact devices such as tablets, netbooks, cameras and cameras have mini-HDMI connectors. They are 3 times smaller in size and, accordingly, they require a mini-HDMI cable. Often the TV hangs on the wall and it is not possible to insert a massive cable at the back. Cables with a plug at an angle of 90 degrees are sold especially for such cases. There is also an option to buy an HDMI corner:
With the help of such a corner you can connect both from the back and from the side. They even come with an adjustable angle and with a bend not straight, but to the side. Just think about it before purchasing appearance in which direction the cable will come out after connecting through the corner (up-down-right-left). There are simply corner adapters oriented to different sides, be sure to take this into account! You won't be able to connect without HDMI connectors. Unless there is a free connector for a DVI monitor, you can buy a DVI-HDMI adapter and use it.
So, insert the cable into both connectors until it stops. Be sure to disconnect both devices from the network before connecting! Be sure to read about this in more detail in the article! If some negative factors coincide, HDMI ports or even the entire TV, computer or laptop may burn out!
If your TV does not have enough ports, you can purchase a so-called HDMI switch or “switcher”. It connects to just one input on the TV, and you can connect several sources to the switch. Using a button or a separate remote control, you can switch between devices:
You can buy regular Chinese switchers for $10, and not those sold in online computer stores for $50-100 and more! Already tested by many people and everything works great even without an external power supply. The only thing is that if you are going to watch heavy 1080p high-definition movies through it, then you should take a closer look at more expensive models.
Setting up an HDMI connection
So, everything is connected and now all that remains is to configure Windows a little. If only one TV is connected, the picture should appear immediately. Please note that in order for the computer to boot on TV, the monitor must not only be turned off, but disconnected from the system unit!
After Windows boot All you have to do is select the appropriate screen resolution. You can do this by right-clicking on an empty space on the desktop and selecting “Screen resolution”
Here you can select your preferred resolution. The higher, the clearer the picture, but the smaller the elements on the screen. By default, the system selects the maximum resolution that the device supports. You can leave it like that if everything suits you. But if the work is uncomfortable, the font is too small and difficult to read, then you can reduce the resolution, but there are nuances.
LCD TVs and monitors are designed to display a certain number of dots (pixels) horizontally and vertically, for example 1920x1080 (this is the matrix resolution). And if you set a non-standard resolution, then in order to display it on its matrix, the TV will scale it, and this MAY lead to deterioration in quality and blurring of the picture, or maybe everything will be fine.
If your TV supports a resolution of 1920x1080 (Full HD), then it will also display 1280x720 well, while all the details and fonts will be larger. For an HD Ready TV (not Full HD), there is no point in setting 1920×1080, because its real resolution is 1366x768 pixels.
By the button " Additional options» On the “Monitor” tab, you can set the screen refresh rate. I recommend setting it to 60Hz or higher if your TV supports it:
The TV on this tab may not be called by its name, but by something like “Universal PnP Monitor”. If, when watching a video, it twitches a little or does not go smoothly, then you can experiment with the frequency. Select “True Color (32 bit)” for color rendering quality.
If there is any change in resolution, frequency or color depth, the system will display a window to confirm the changes. If the device does not work with the new parameters, then you will not be able to see this window and will not confirm your actions. There is no need to panic, just wait 15 seconds and the system, realizing that you do not see anything, will return the previous settings.
How to set up multiple displays
If a monitor is connected at the same time as the TV, Windows will assume that multiple displays are connected. In general, it doesn’t matter what it is, a TV or a Monica, for the system it’s all displays. There are two modes for multiple displays: duplication (cloning) and desktop extension. This is selected in the same place where you set the resolution.
Screen mirroring
In case of cloning, your Desktop will be displayed identically on both devices. In this case, the screen resolution will be common for both devices, and it is impossible to set it differently, at least for now. If you know how this can be done, please write to me in the comments 😉
It turns out that to use this mode it is better to have both a TV and a monitor with the same resolutions, otherwise someone will have to work on a different wavelength :) Or the devices must be at least the same format, for example, both are widescreen. If the monitor is square (with an aspect ratio of 4:3 or 5:4), and the TV is widescreen (16:9 and others), then the picture on it will have black bars on the left and right, just like that.
Desktop extension
Everything gets more interesting here :) This mode allows you to have two or more desktops. That is, if you place two displays side by side, then when you move the mouse cursor will move from the monitor to the TV and back. The system assigns a number to each device, which is visible in front of the display name. If it is not clear who is under what number, then click the “Determine” button and a large number will be displayed on all displays on the entire screen with its number:
At the top you can see pictures of devices with signed numbers; they indicate the location of the displays in space. By dragging them with the mouse, you yourself set who is on the left, right or top, bottom. Click “Apply” and voila! The desktop expands into two displays. Using the appropriate checkbox, you can make one of the devices the main monitor, i.e. Where is the Start button?
For a computer and TV in expansion mode, you can separately adjust the screen resolution and frequency in the same way as you did before for one device. In settings NVidia video cards, AMD (ATI) and others have their own capabilities for installing multiple displays. For example, for NVidia GeForce series video cards, you need to right-click on an empty space on the desktop and select “NVidia Control Panel”. In the "Display" section you can configure your monitors:
How to output sound to TV via HDMI
Firstly, on your video card. You can see whether the HDMI audio output driver is installed in “”. To open it, press the “Win+Pause” buttons and select “Device Manager” on the left. In Windows 10, you need to right-click on the Start menu and select the item of the same name.
In the “Sound, gaming and video devices” section there should be something like “Device supporting High Definition Audio”, i.e. High definition audio support:
Secondly, in the playback devices (open by right-clicking on the speaker near the clock or “Control Panel -> Sound”) there must be a digital audio device (HDMI) or something similar in name.
Thirdly, when the TV is connected to the computer, the device will change its status to “Ready”. Now you need to right-click on it and select “Set as default”.
Fourth, on different TVs, not all HDMI inputs can receive sound! A port called “HDMI 1” should definitely be able to do this. If it doesn’t work on its own, then you need to dig into the TV settings to see if you can use a digital audio stream for HDMI input No. X, rather than an analog one (used when additionally connecting tulips). If it’s on your computer or laptop, then read my article on solving this problem.
Watch two videos (playlist) with a visual connection process and Windows settings 7 (8/10)
Edited: 2018-07-16
My name is Alexey Vinogradov, I am the author of this wonderful site. I am interested in computers, programs, programming. We have more than 20 years of experience and a lot of wasted nerves :)
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Many users, not wanting to watch movies or TV series on a small monitor, connect a laptop to a TV panel from LG, Samsung, Sony or another brand to display the image on a large screen. However, when connecting equipment using most cables, only a picture is sent to the display, whereas when using HDMI, not only video, but also an audio signal can be transmitted to the TV receiver. However, sometimes after connecting the devices, you find that there is no sound on HDMI on the TV. Such a malfunction can occur for a number of reasons, and in order to eliminate it, you must first diagnose the equipment and the configured connection.
Diagnosing and fixing the problem
If the audio signal from the PC does not come through the HDMI cable, to correct the error and output sound to the TV panel, the user needs check connection for all possible errors. The problem may lie in the settings of the TV receiver or PC, an incorrectly selected playback source, missing or outdated drivers, etc.
Checking volume levels
If there is no sound coming from the TV's speakers, you need to check whether the volume on both devices is turned off. This can be done on TV using the remote control or control keys, located on the body.
On PC you will need click on the speaker icon in the tray(lower right corner on the monitor) and make sure that the slider is set to maximum. Next, you need to call up the context menu and go to “Volume Mixer”. Here you need to make sure that the sound is turned on and set to maximum for all running applications and devices.
Note! You can also check the volume level on a PC or laptop using the function keys. To do this, first press the “FN” button, and then press the volume up (usually one of the arrow keys or the F1-F12 buttons). After pressing, the user will see a slider with the volume level in the upper right corner of the screen and will be able to increase it if necessary.
Hardware problems
A problem with the cable or one of the devices is also a common reason why your PC won't transmit audio to your TV via HDMI. If the TV speakers are working properly (sound appears when you turn on TV channels), you need to check the functionality of the connector. To do this, switch the cable to another port. If the problem persists, you need to check the connector on your laptop or PC by connecting other equipment to it.
If the connectors are in order, then proceed check cable functionality. To do this, you need to connect a DVD player or digital receiver to your TV through it. This technique does not require additional customization, so the user will immediately see the picture on the screen and hear the sound in the TV speakers if the cable is working.
Very often, cheap Chinese HDMI cables that users buy in order to save money turn out to be faulty. They either cannot immediately reproduce the transmitted content, or the image (or sound) regularly disappears. To avoid such problems, you should buy reliable branded cables.
Important! If the sound was working properly, but suddenly disappeared, this indicates that the cable may have been broken or damaged by pets. You need to carefully inspect it for external damage.
Transferring sound from a PC to a TV panel will be an impossible task when using some adapters. So, if DVI-HDMI or VGA-HDMI were used when connecting the computer to the TV receiver, the audio signal will not pass through. A similar problem is also possible when using inexpensive DisplayPort-HDMI adapters, which also do not have the technical capabilities to transmit sound.
Selecting playback source
When you connect an external audio device to your PC, Windows automatically detects the new hardware and transfers audio to it. In some cases this does not happen and the user needs to manually set audio signal transmission to connected equipment. To do this, click on the speaker icon in the tray and select “Playback devices”.
Note! On a Windows 10 PC, you need to select “Sounds”, then “Playback”.
A window will appear in front of the user with all available audio output equipment. You need to find the TV icon and set it as default device. As a result of this, sound should appear in the speakers of the television receiver.
TV Display Settings
If the television panel does not appear in the list of devices for sound output, you need to click on free space window with the right mouse button and set labels to reflect disconnected and disabled devices. As a result, the TV should appear in the list of equipment. If this does not happen, you need to restart the PC with the television panel connected. After the computer starts again, you should re-open the playback devices tab. The TV should now be selectable. If after rebooting the PC still does not see the connected TV receiver, you need to check whether the drivers for the equipment are installed.
Driver problem
Another popular problem, as a result of which sound from a laptop or PC is not output to the speakers of the TV receiver, is uninstalled hardware drivers. To verify this, you need to open the “Device Manager” (for Windows 8 and 10 – through the context menu of the “Start” button, for Windows 7 – through the context menu of the “My Computer” icon).
Advice! On any version of the OS, including Windows XP, you can use the “Win+R” key combination to open the “Run” command and enter “devmgmt.msc”.
In Device Manager, you need to open the “View” section, and then select the display of hidden devices in the drop-down list. Next, open “Sound, game and video devices”. In addition to the audio card, the list should display one of the devices such as NVidia High Definition Audio, AMD High Definition Audio or another, with the name HDMI included - this is the component used to output audio via HDMI. If it is disabled, need to be turned on it through the context menu.
If the required component is not in the list of audio devices, you need to install drivers so that the required utility is detected by the computer and starts working. To do this, go to the website of the video card manufacturer and download according to the model current versions drivers.
Note! Driver installation should be done manually. For example, for GeForce graphics cards manufactured by NVidia, during installation you need to make sure that the “HD Audio Driver” is present, which is responsible for transmitting the audio signal via HDMI. On video cards from other manufacturers, this driver is called differently.
However, if the drivers are not installed for any reason, you must completely remove the video card software and the hardware itself from the system and then install it again. To download these auxiliary utilities, the user will need an Internet connection, which can be configured using the services of providers such as Rostelecom, MTS, TTK and others.
NVIDIA controller
If a graphics adapter from NVidia is installed on a laptop or PC, in order to transmit an audio signal to the TV, the user will need access the built-in audio controller. To work with it, you need to launch the video player through which you usually watch movies or TV series, and in the sound settings, enable Nvidia High Definition Audio as the default device.
Other faults
Usually, along with sound drivers, software is installed on the computer, which has its own utilities for outputting sound via HDMI. Such programs include Intel HD Graphics, AMD Catalyst, NVidia Control Panel, etc. In rare cases, this circumstance may cause the absence of an audio signal on the TV receiver when connected via HDMI. To correct the situation, you need to open such a utility and configure the sound settings correctly.
Features of settings on different versions of Windows
Setting up sound on Windows OS different versions happens the same, but possible differences in the locations of the required sections. For example, on Windows 7, “Playback devices” are available from the context menu of the speaker tray icon. And to open the same tab on Windows 8 or 10, you must first click on “Sounds” and only then on the “Playback” tab. The main nuances of the location of certain sections were discussed in the relevant paragraphs of the above material.
So, if the user decides to connect a computer via HDMI to his Philips, Toshiba, Panasonic or other brand of TV, but after connecting he finds that only the image is transmitted and the sound does not work, then he first needs to diagnose possible software problems, and then identify problems in cable or connectors. Lastly, you should check the equipment itself for serviceability, and if a breakdown is detected, contact professional technicians. service center, excluding repairs on your own, so as not to aggravate the problem.
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