The most common sound problem for laptops is not hearing any sound at all. This could be due to the sound card or driver, volume settings, or the headphones being used.
Another common sound problem is hearing crackling or distorted noise from the laptop. In this case, the user should make sure the speakers or headphones are plugged into the line-out jack, not the line-in jack. Other possible sound problems include the operating system not recognizing the sound card or hearing sound only from the laptop's speakers but not through headphones. The sound might also go up and down in volume.