If it's xHCI then there's nothing I can do. If it's EHCI then the attached patch ought to help. For debugging purpose it writes a warning message to the kernel log whenever an underrun occurs, but it prevents the underrun from causing a failure.
It turns out there are two bugs in the snd-usb-audio driver, either of which may be affecting you. There's a patch for one of the bugs at <http://marc.info/?l=linux-usb&m=137288343602140&w=2>, but there's no fix for the other bug (not enough URBs submitted). ** Attachment added: "Accept URB submissions during underruns, with a warning" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1191603/+attachment/3757297/+files/ehci-iso-accept -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1191603 Title: raring-updates: regression: 3.8.0-24.35 causes sporadic failure of USB audio devices To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1191603/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
