[LAU] Jack shots down or creates xruns

[Jeremy Jongepier]

On 06/25/2010 03:55 PM, Thomas Hedegaard wrote:
> firewire ERR: wait status <  0! (= -1)
> 
> DRIVER NT: could not run driver cycle
> 

Hello Thomas,

This could indicate something is blocking the data stream, in your case
maybe the Radeon card. Are you using rtirq-init? If not it may be wise
to give it a try: http://ubuntuforums.org/showthread.php?t=1328175 and
http://subversion.ffado.org/wiki/IrqPriorities
I would also set JACK's prio lower, maybe 70 would be better. And
Firewire cards, in my personal experience, work better with a periods
setting of 2 instead of 3.

Best,

Jeremy