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HP PCs - Troubleshooting HDMI display and sound issues (Windows 10)

When connecting your computer to an HDMI device, such as a monitor, TV, or surround sound speakers, you might encounter display or sound issues.

Use this information to check your settings and troubleshoot problems.

Use the correct HDMI cable for your HDMI device

Most HDTV devices have more than one HDMI input port. Make sure that the input source of the HDMI display is set to the same HDMI port that is connected to your computer; for example, HDMI 2 to HDMI 2.

If your computer and HDMI device use different cable types, you can purchase adapters. For more information, see Overview of HDMI and DVI Connections for PCs.

HDMI cable connector

Image of the plug on an HDMI cable

HDMI 19-pin port

Image of an HDMI 19-pin port

Select HDMI sound output as the default audio device in Windows

Select the HDMI device as the default output device. When an external sound device is not connected to the computer, the sound settings revert to the computer speakers and headphones. When the HDMI device is connected to the computer, the sound settings change to the HDMI device.

Open the sound settings to make sure that the correct output device is selected.


The images displayed might differ from your computer, but the steps are the same.

  1. Connect the HDMI cable to your computer and to your output device.

  2. In Windows, search for and open Control Panel.

  3. Click Sound, and then click the Playback tab. The Sound window opens.

  4. On the Playback tab, select Speaker/Headphone or Speakers and Headphones, and then click Set Default.


    Use Default Devices for audio output devices such as headphones or speakers. Use Default Communication Device for making and receiving phone calls.

    Setting Speaker/Headphone as the default audio device
  5. Select the output device connected with the HDMI cable, and then click Set Default.

    Setting output device connected with the HDMI cable as the default device
  6. Right-click the output device connected with the HDMI cable, and then select Show Disconnected Devices. The HDMI cable must be connected when you configure the output device.

    Selecting Show Disconnected Devices
  7. To view all available sound devices, right-click any device displayed in the Sound window and select the Show Disabled Device and Show Disconnected Devices options.

Run Audio Check in HP Support Assistant

Run Audio Check in HP Support Assistant to make sure that the audio device is functioning properly.

  1. Go to HP Support Assistant to download and install the HP Support Assistant software, if it is not already installed on your computer.

  2. In Windows, search for and open HP Support Assistant.

  3. On the My Dashboard tab, click Fixes & Diagnostics.

    Click Troubleshooting and fixes in the My notebook pane
  4. Click Audio Check in the One click fixes section.

  5. Click Next, and then wait for the audio test to complete.

    Clicking Next to start the Audio Check
  6. Review the test results on the audio and microphone diagnostic results sections, and then click Test Audio.

    Reviewing the audio test results, and then clicking Test Audio
  7. If sound is not heard correctly, click Unable to Hear Audio and then follow the on-screen instructions.

Using the Windows Sound troubleshooter

Use the troubleshooter to resolve audio playback issues.

  1. In Windows, search for and open Control Panel.

  2. Click Troubleshooting.


    If you do not see Troubleshooting listed, change View by (located in the upper-right corner of the screen) to Large Icons.

  3. Under Hardware and Sound, click Troubleshoot audio playback.


    Administrator permission is required to run this program. If prompted, type the administrator password or provide confirmation.

    Clicking Troubleshoot audio playback
  4. The Sound troubleshooter opens. Click Next. The troubleshooter begins checking the audio service status.

    Click Next to run the Sound troubleshooter for audio playback
  5. Select the device that you want to troubleshoot, and then click Next.

  6. Follow the on-screen instructions and make any changes suggested by the troubleshooter. When you are finished, close the troubleshooter.

Advanced HDMI display and sound troubleshooting for Windows

Use these advanced troubleshooting procedures for issues with HDMI display and sound.

Performing a hard reset

A hard or forced reset erases all information in the computer memory, which might resolve HDMI display and sound issues.

When performing a hard reset, you must disconnect or remove all peripheral devices. Test the computer by itself, and then reconnect one peripheral device at a time.

Update the PC with HP Support Assistant

Use HP Support Assistant to find and install updates, including BIOS updates, for your computer with Windows.

  1. In Windows, search for and open HP Support Assistant, or click the app icon in the taskbar.

    If the app is not installed on your computer, download the latest version from the HP Support Assistant website.

  2. On the My Dashboard tab, find your computer, and then click Updates.

  3. Wait while HP Support Assistant analyzes the system.

  4. After the analysis completes, select the listed updates, download and install the updates, and then follow any on-screen instructions.

  5. If prompted, restart the computer, and then close the tool.

Installing computer updates using Windows Update

Find and install updates for your computer with Windows 10.

  1. In Windows, search for and open Windows Update settings.

  2. Click Check for updates.

    If there are any available updates, they begin installing automatically.

  3. After the updates install, restart your computer, if necessary.

Troubleshooting specific HDMI issues

Find your HDMI issue and use the suggestions to troubleshoot your issue.






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