X201 Internal Speakers Stop Working
I am thinking this is a fault with the IO Assembly board, but am not sure.. I have reinstalled Win7 clean with updated drivers and still see the same problem.
Another interesting thing is I keep getting the disconnect/connect sound ( like you are plugging in a usb device ) at random times. That always seems to correlate to the windows AUDIODG process.
As you have already reinstalled the Operating System and drivers are also updated.
I suggest you to update the BIOS and check
If then also the issue persist and your laptop is in warranty then you can contact the support center.
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