All the above doesn't make sense from a software point of view.
Even when booted from usb it's not as it should be.
Sometimes hardware is corrupted (faulty but just a bit like when it gets hotter or colder) generally it get's worse overtime.
Is it still under warranty?
Just tried Mint 16 on a usb and had no problem with sound so I'm out of ideas.
If you get it working again let me know
People disagree with me. I just ignore them.
(Linus Torvalds, regarding the use of C++ for the Linux kernel.)
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