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

[James Morris]

On 2 February 2011 23:40, Rods Bobavich <rodnisms at gmail.com> wrote:

>> Shooting from the hip (and also digging in 2.6.26.5 sources)... looks
>> like there was a timeout when calling usb_set_interface()
>> (drivers/usb/core/message.c).  The urb transfers look like they
>> stalled rather than failed to allocate bandwidth.  That makes me think
>> there's a bad cable, bad USB controller, bad USB controller /driver/,
>> bad format request, bad device, or something like that.
>
> That sounds consistent with my reports. It's speculation, but at least we
> have that...
>

I had very similar errors with a USB keyboard. Faulty contacts in the
connection resulting in poor power supply.