Comment 46 for bug 751265

> Should new, card specific, bug reports (in case if solution 23 works) be submitted as pulseaudios or other packages bugs?

For this case, file the bug against the alsa-base package.

> Also, can users of distributions, based on Ubuntu (Mint, etc), report bugs here at all?

I don't know if there is an official/generic answer to that, but my personal preference would be that you could try it on a clean Ubuntu installation first, and only if the bug still exists there, to file a bug in Ubuntu.