If you’re using an HDMI cable to connect your computer to an HDMI-capable monitor with speakers, you might not be able to hear sound. HDMI cables support audio signals, but not all HDMI enabled video cards support audio. You might also need to set the HDMI audio device as the default.
To check to see if sound is supported over HDMI follow these steps:
Open Sound by clicking the Start
, and then clicking Control Panel
. In the search box, type sound
, and then click Sound
Click the Playback tab and look for an HDMI device; this will appear as a speaker icon and will be labeled Speaker, followed by the name of the device.
If you have an HDMI device, click the device, click Set Default, and then click OK.
Changing the audio device might require you to restart your computer.
If you don't have an HDMI audio device, your HDMI-capable monitor should have an audio input, and you might need to connect a separate audio cable from your computer sound card directly to the monitor. If the monitor doesn't have speakers, you'll need to connect the audio signal to a different device, such as external computer speakers or your home stereo system.
Some video cards with HDMI output require you to connect a wire from your video card to the sound device, this usually requires a small wire connection inside your computer from the video card to the sound card. Check the manual that came with your video card for instructions on how this should be done.
If you just installed a new video card it's possible that the video card driver installation program set your video card as the default audio device. In this case, you'll need to set your preferred video card as the default audio device to fix the problem. See the previous instructions for help setting the default audio device.