Am Mittwoch, 26. November 2008 schrieb Dave Phillips: > Nice unit, but there's one big trouble with it: I get a lot of xruns > from JACK. I've Googled for solutions, tried every suggested setting, > got no joy. The only setting that works without xruns at all yields a > latency of more than 30 ms (-p 512 -n 4 -r 44100). If I lower the period > size to 256 I can get the latency down to 23.2 ms and suffer only an > occasional xrun. In contrast to pci-devices you now have an additional stage which is the usb-transport. Look at the interrupts which usb-port isn't sharing its interrupt with other devices. Then use lsusb to find out where you have to plug the device to use that usb-port (Most times one port has two or more plugs connected to it). Then you can try to use the rtirq-script to raise the priority of that interrupt. For usb (and firewire) it is usually better to use -n3 -p... which has something to do with the way their protocols work. Have fun, Arnold -- visit http://www.arnoldarts.de/ --- Hi, I am a .signature virus. Please copy me into your ~/.signature and send me to all your contacts. After a month or so log in as root and do a "rm -rf /". Or ask your administrator to do so...
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