> > Ok. Let's hope that in the future somebody actually fixes the driver so that 2.1 works and we can add it back, but for now, I've pushed your patch. type route ttable.0.0 1 ttable.1.1 1 ttable.2.4 1 ttable.3.5 1 ttable.4.2 1 ttable.5.3 1 type route ttable.0.FL 1 ttable.1.FR 1 ttable.2.LFE 1 You need to merge two route ttable into one ttable for usb audio 's surround21 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20151127/17c100f6/attachment.html>