I found what the problem was... It seem that when you plug the USBStreamer B for the first time the asound.state does not have any channel mapping so it creates one for the first time and read it the next time when the computer boot and alsa start.
I erase the information of USBStreamer on asound.state, reload alsa and I worked. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1526569 Title: [USB-Audio - USBStreamer, playback] No sound at all To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1526569/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
