[LAD] snd-usb-audio dying on jackd xruns

[Rods Bobavich]

Tried all the different ports I could. Seems I can't get it on the EHCI
buses no matter which ports I use. Even replugged the front USB cable to the
other ports but it always comes back on the two OHCI busses. Am thinking of
buying a separate PCIE USB card as a temporary work around... I've had to
cancel my studio sessions for the week on account of the systems being down.
ARG!

...Rods ;-)


On Wed, Feb 2, 2011 at 10:48, Gabriel Beddingfield <gabrbedd at gmail.com>wrote:

> > dmsg, lsusb, lsusb -t
> > [   46.458327] ALSA urb.c:480: frame 0 active: -75
> > [   46.461327] ALSA urb.c:480: frame 0 active: -75
> > [   46.463328] ALSA urb.c:480: frame 0 active: -75
>
> URB is kind of a bulk transfer protocol.  Not sure what this error
> message means without digging in.
>
> > /:  Bus 04.Port 1: Dev 1, Class=root_hub, Driver=ohci_hcd/6p, 12M
> >     |__ Port 3: Dev 2, If 0, Class=HID, Driver=usbhid, 1.5M
> >     |__ Port 3: Dev 2, If 1, Class=HID, Driver=usbhid, 1.5M
> > /:  Bus 03.Port 1: Dev 1, Class=root_hub, Driver=ohci_hcd/6p, 12M
> >     |__ Port 3: Dev 3, If 0, Class=HID, Driver=usbhid, 1.5M
> >     |__ Port 4: Dev 4, If 0, Class=audio, Driver=snd-usb-audio, 12M
> >     |__ Port 4: Dev 4, If 1, Class=audio, Driver=snd-usb-audio, 12M
> >     |__ Port 4: Dev 4, If 2, Class=audio, Driver=snd-usb-audio, 12M
> > /:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci_hcd/6p, 480M
> > /:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci_hcd/6p, 480M
>
> Try plugging it into different USB ports.  Looks like you're sharing
> it with a mouse or something (possibly internally on the MoBo).
>
> -gabriel
>
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