Look at the speakers selected in the control panel. Sorry but this area is NOT STANDARDIZED so you are left to go find it.
I have a Compaq presario CQ50 laptop that I recently took in to have cleaned up (files cleaned up, defraged, anti virus check, etc.). When i got it back the sound did not work through the speakers but it does work through the headphone jack.
The owner said that they didn't do anything to the sound but I could check a couple of things. he confirmed:
"the software volume
controls are set correctly. The only thing I can think of is that there is a
hardware mute button on the laptop itself or some other kind of external volume
control (buttons or volume wheel) on the side or front of the laptop."
another friend said i could check the BIOS.
Can anyone help me solve this?