Comment 2 for bug 1672822

Btw it might sounds not serious but in fact on my laptop it's essentially make sound system useless - sound from subwoofer comes very distorted making almost impossible to distinguish any voice, so no skype, no movies, no youtube or podcast on ubuntu.

Have to boot to windows only for that

From googling I would say it affect multiple laptops with more than 2 speakers, not only acer predators