Speakers, earbuds, etc... out on one side only. On multiple jacks. Pavumeter(with a test sound) and pavucontrol show signal, it's just not making it to one side of the output devices.
Newer(Obviously, this is the "Absolute Beginners Section"), so I'm unsure what other data would be useful. Here's a copy paste from lshw.
lshw.txt
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