Usually plug in the power supply is no problem, but a power supply will be no soundWell, it's all mute. There's no problem with the control panelWhere is the sound card option?
Can you say something in detail? Is it all mute or something? You open the audio and audio equipment in the control panel to see what's wrong with the settings.Double click your volume icon
Sound card options yo ah, look at your driver, like my microphone will be inserted into the jump out, but also usually can not open, you'll see your installation of the driver file, there is no sound card settings in the price
You may have set the sound card option: turn off the speakers when you use the battery. My DELL 1420 SigmaTel sound card has this function, you look at it
