17 Jun
2008
17 Jun
'08
4:06 p.m.
Johannes Mario Ringheim wrote:
After upgrading to Ubuntu Hardy (8.04), I'm having
(too many) xruns on
two different machines. Both worked perfectly on 7.04.
On both machines the "RT" indicator on qjackctl keeps blinking. On 7.04
it was always dimmed, and everything worked fine. Does someone know what
that "RT" indicator in qjackctl means? When it is dimmed, do you not
have proper realtime scheduling?
On my laptop, with a Behringer UCA202 USB soundcard, there are xruns on
some of the "RT" blinks. On my PC, with an M-Audio Delta66, there are
one xrun on the first blink, and on every subsequent blink a message
saying "XRUN callback (40 skipped).". Then there's about forty lines
saying "delay of 36196.000 usecs exceeds estimated spare time of
11579.000; restart ...". I've included a portion of the jackd output below.
just a way of clarification.
the RT blinking is a recent "feature" of QjackCtl. you can turn it off
in the Setup/Display/Blink server mode display option if you don't like
it :)
the RT indication being there, either blinking or not, is a simple
indication that the jack server is running in real-time mode. the
blinking is just some lousy eye-candy, nothing more, nothing less ...
it just happens that qjackctl displays new xruns and blinks at the very
same time (~2 second period). the xruns are happening in between (and
count reported as "skipped") it just doesn't matter whether the RT
indicator is blinking or not.
byee
--
rncbc aka Rui Nuno Capela
rncbc(a)rncbc.org