26 Mar
2011
26 Mar
'11
9:13 a.m.
----- "Paul Davis" <paul(a)linuxaudiosystems.com> wrote:
On Fri, Mar 25, 2011 at 7:09 PM, Cedric Roux
<sed(a)free.fr> wrote:
jackd -d alsa -C hw:2 -P hw:0 -r 44100 -p 256
leads to:
jackdmp 1.9.6
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2010 Grame.
jackdmp comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details
JACK server starting in non-realtime mode
Cannot lock down memory area (Cannot allocate memory)
creating alsa driver ... hw:0|hw:2|256|2|44100|0|0|nomon|swmeter|-|32bit
Using ALSA driver HDA-Intel running on card 0 - HDA Intel at 0xdc500000 irq 44
configuring for 44100Hz, period = 256 frames (5.8 ms), buffer = 2 periods
ALSA: final selected sample format for capture: 24bit little-endian
ALSA: use 2 periods for capture
ALSA: final selected sample format for playback: 32bit integer little-endian
ALSA: use 2 periods for playback
alsa_driver_xrun_recovery
JackAudioDriver::ProcessAsync: read error, skip cycle
alsa_driver_xrun_recovery
(and a continuous repetition of the last two lines, several
times per second, like 10 maybe)
-p 512 and higher works
without hw:2 plugged in -p 256 works but not below
without -r 44100 I have same result (it goes 48000).
I tried as root to have a better nice, no change.
Maybe it's not a jack issue, maybe it's the bad configuration
of another part of the system. It's ubuntu 10.10 with no
customization except removing pulseaudio.
something. There are issues, like jack refusing
to work with
buffers of less than 512 frames (I am not with a rt kernel)
when you say "refuse" do you mean "will not start" or "performs
badly"?