When I play game or listen to music, It suddenly turns off sound. If I hit the mute button and hit again, It will OK. Or, I change the volume, It works.But after time, It turns off.Is this hardware or software problem. I remember that everything is OK before I bring my laptop to Clean Center. What should I do? I'm using Windows 8.1, my laptop is ThinkPad T410.
- Windows 7