[LAU] xruns on ubuntu w edirol FA101

[Nick Dokos]

Atte André Jensen <atte at email.dk> wrote:


> A friend of mine has just installed ubuntu with a little phone support
> from me. The changes we did were:
> 
> 1) Add him to the audio group /etc/udev/rules.d/40-permissions.rules
> 2) Add the following to
> KERNEL=="raw1394",                      GROUP="audio"
> KERNEL=="dv1394*",                      GROUP="audio"
> KERNEL=="video1394*",                   GROUP="audio"
> 3) Install a realtime kernel
> 
> However he still reports that jack exits after about 10s with
> buffersize 128 and he get's lots of xruns on larger buffer settings (I
> think even on 1024).
> 
> This surprises me, since I run standard ubuntu (recently installed the
> realtime kernel, though) with no xruns on buffersize 128 with an FA66.
> 
> Is there anything I forgot in my over-the-phone instructions? Other
> ideas on how to narrow this down?
> 
> NB: I don't his computer, but according to him, it's an "old laptop"...
> 

I had to set periods/buffer to 3 on my laptop (the default was 2). I
don't think jack exited when I had the default setting on, but it got
lots of xruns and playback was *really* rough.

HTH,
Nick