This seems to be a problem with the USB stack rather than the ALSA interface.
[ 622.980111] usb 2-5: new full speed USB device number 23 using ohci_hcd [ 623.861221] usb 2-5: device descriptor read/all, error -62 [ 623.920039] hub 2-0:1.0: unable to enumerate USB device on port 5 ** Package changed: alsa-driver (Ubuntu) => linux (Ubuntu) ** Changed in: linux (Ubuntu) Status: New => Triaged -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/870934 Title: USB sound card not detected To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/870934/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs