When you connect your laptop speakers via the HDMI port, sometimes some devices have problems working since the audio device doesn’t recognize the HDMI connection. The most typical problem that causes no sound in a laptop is often the stuck sound sensor. This device will either be unable to recognize the HDMI signal or it won’t respond to signals sent by the laptop speakers themselves. To fix this, you have to be very cautious while dealing with such problems as trying to unscrew the speakers from their connectors or even to physically remove them and see whether they are properly working or not.
One of the oldest tricks in the book in troubleshooting audio problems in laptops is to use a headset to hear what is wrong. This is not only foolproof but also works well in all situations. Try this trick when the laptop speakers aren’t working – connect your audio device to your laptop using the headphone jack. Then play some music and listen to it on the headphones. If there is no sound then perhaps the audio device isn’t recognized by your laptop speakers, or it doesn’t operate properly.
Another trick for working laptop speakers is to hide the laptop speakers until you can see the system tray and check whether the sound is coming from that particular device. Sometimes, the system tray won’t appear if there is no speaker icon in the system tray. To solve this, simply hide the speaker icon, open the control panel and check whether all the items in the system tray are being shown. If all the icons are grayed out, close the control panel and click on the “alsa sound icon” to show the speaker icon again. If the sound is coming from the speaker icon, you know that you are able to use the speaker and if not, you may have to purchase a new one.