Only occurs when the mic is enabled. Try turning that off.
I've only used this port twice since i bought this laptop 6 months ago. The 1st time i used it i plugged in some headphones and set the
driver for the port to default. No sound just feedback when plugging
in and out. Finally got sound when pulling the headphone plug
slightly out. Tried it again yesterday and no matter what i did no
sound just feedback when plugging in and out. Tried a pair of
computer speakers and same thing. The headphones and computer
speakers work with my walkman so i know it has to be the laptop. Sony
told me to run system recovery to determine if it is a hardware
issue. Want to check here 1st before doing this to see if anybody
else has this issue. TIA

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