Some causes of missing sound in laptops include connection problems, sound settings, missing updates and problems with the sound card. The procedures for solving sound problems in laptops vary depending on the version of Windows.
External speakers generally connect to the laptop via the line-out jack. If the audio device connects to the laptop via a USB port, the user unplugs the USB device, and plugs it into another USB port.
In Windows 7, the user clicks Start, opens the Control Panel, and clicks on System and Security. Under System, the user selects Device Manager, double-clicks on Sound Video And Game Controllers, and checks for the sound card. If the sound card does not appear in the list, the user installs a new sound card according to the manufacturer’s instructions.
To solve problems with sound settings, the user opens the Control Panel, clicks Hardware and Sound, and then clicks Adjust System Volume. To increase the volume, the user moves the slider upwards and turns off the Mute button.
For missing updates, the user clicks Start, goes to All Programs, and opens Windows Update. He then selects the specific driver on the Driver tab, and then clicks Update Driver to find and update the missing driver.