Was this dmesg taken after you plugged the device into the add-on PCI card? It shows that the device is connected to a USB-3 port.
That's the reason for your problems; the support in Linux for isochronous transfers over USB-3 is buggy. Try plugging the device into a USB-2 port instead. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1136110 Title: USB Audio Codec choppy playback To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
