There is no sound when the computer speaker is plugged in, which can be caused by a variety of reasons. First, check that the speakers are connected correctly. Make sure the speaker plug is plugged into your computer's audio output jack and that the speaker's power is turned on. If the plug is not plugged in tightly or the jack is damaged, it may cause the speaker to not work properly.
If your speakers are connected correctly and there is still no sound, you can check your computer's audio settings. Press the Win key and the I key on your computer's keyboard to open the settings window. Select the "System" option and tap on the "Sound" option. On the sound settings page, check that the audio output device is set to the correct sound device. If not, select the correct speaker and make sure the volume adjustment is not muted.
If the above two steps don't solve the problem, you can try updating your computer's audio drivers. Press the Win key and X key on your computer keyboard and select "Device Manager". Expand the Sound, & Game Controllers option, find your speaker and right-click on it. Select the "Update Driver" option and follow the on-screen instructions.
If updating the driver doesn't fix the problem, there may be a problem with the speaker itself. You can try plugging your speaker into a different computer or device to check if it's working. If the speaker is also not available with other devices, there may be a fault with the speaker itself. At this point, you can consider repairing or replacing your speaker.
If you're sure there's nothing wrong with your speaker, but your computer still won't make sound, there may be another problem with your computer. You can try restarting your computer or checking if your computer's hardware is faulty. If the problem persists, consider seeking professional technical support to resolve your issue.
In short, if you find that there is no sound on your computer speaker, you can follow the above steps to troubleshoot and deal with it. Make sure your speakers are properly connected, check your audio settings, update drivers, check your speakers themselves for faults, and check for faulty computer hardware. With these steps, you should be able to find the problem and take appropriate action to fix the problem of no sound from your computer's speakers.