Volume up full but no sound
Have you checked device manager to update driver
in control panel sound / audio check to make sure all settings are correct and under audio make sure default settings are correct
your sound card may need replaced
have you made any system changes
SOURCE: sony vaio sound stopped working
on your key pad there are also volume controls they will be the fn keys hold down the fn key and press the fn key with the little speaker on it
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my sound stops working at random times... I have to shut my laptop and re-open it to get the sound to start working. then if i watch a Youtube video, for example, the sound will stop working immediately after watching. I have all up to date downloads.
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