I have a dell laptop that now has static sound coming from the speaker audio jack. It will go into the headphones if you plug them into the jack. It does not go up or down or away by adjusting the volume. I have tried the Audio troubleshooting, nothing came up. I have checked the device manager, update drivers, etc. That did not work. I have blown air into the jack and other areas of the computer to clear dust. I have unplugged the laptop from the power cord. None of this makes any difference in the static noise. It is a dell laptop running Windows 8