<div dir="ltr">I don´t know if this is helpful, but this audio interface (scarlett) works with its own mixer on Windows and on Mac. When I bought it, I had to download both mixer and driver form site. The mixer controls some inner properties of the device, and those properties remain "registred" in the hardware.<div> <br></div><div style>Another information: the program I´m using (mataa on Octave) sees all the inputs and outputs that the device offers.</div><div style><br></div><div style>Thank very much for all the help!</div></div><div class="gmail_extra"> <br><br><div class="gmail_quote">2013/3/20 Daniel Mack <span dir="ltr"><<a href="mailto:zonque@gmail.com" target="_blank">zonque@gmail.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div class="im">On 20.03.2013 23:49, Len Ovens wrote:<br> ><br> > On Wed, March 20, 2013 3:01 pm, Rodolfo Thomazelli wrote:<br> ><br> >> In fact I can't produce sounds with "mataa", but I think that this is<br> >> another problem. If any correlated problem appears, I'll come back for<br> >> get<br> >> help.<br> >><br> >> I would like to be able to fix the problem at the root, but as I am new to<br> >> the<br> >> Linux world, I would not know where to begin.<br> ><br> > I was looking for more info on that box and it appears there is a bug in<br> > ALSA... which as I looked farther it seems you have found help in the<br> > right place. I hope the patch works for you. (the kernel patch)<br> <br> </div>The kernel patches seem to have worked, as at least aplay works fine. It<br> was a long-standing but in ALSA that would unsupported mixer units make<br> the entire sound card probe fail, and that is fixed now.<br> <br> For PA though, it seems the card needs a special profile, just for the<br> fact that is has more than a stereo output and it cannot magically<br> mapped into some 5.1 device setup. I think it would be worth thinking<br> about falling back to a multiple stereo mapping in such cases, if no<br> special profile can be found. Even just making the first stereo pair<br> accessible seems like a better solution than dropping the device<br> alltogether, right?<br> <br> <br> Thanks,<br> Daniel<br> <br> <br> </blockquote></div><br></div>