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Fernando Lopez-Lezcano wrote:
<blockquote cite="mid1163900425.12079.31.camel@cmn3.stanford.edu"
type="cite">
<pre wrap="">On Sat, 2006-11-18 at 03:42 -0800, Brian Herrmann wrote:
</pre>
<blockquote type="cite">
<pre wrap=""> I have installed Fedora Core 6 and while waiting for Planet Core FC6
to be built was just messing around. I realized however, that I would
need a few things not available from Fedora extras like alsa-tools and
alsa-firmware to get my HDSP Multiface up and running. Fortunately, I
was able to install the Planet FC5 rpms without problem and did not
have to resort to building from source, etc. So good, so far.
Somethings like the jack-audio-connection-kit and Qjackctl are
available from FC6 extras and so, I installed them thinking to see
what sort of performaceand whatever else I could get going with the
base system, but trying to start jackd using Qjackctl I get this:
01:14:00.664 JACK is starting...
01:14:00.665 jackd -R -dalsa -r44100 -p1024 -n2 -D -Chw:0,0 -Phw:0,0
-H
01:14:00.679 JACK was started with PID=3342 (0xd0e).
jackd 0.102.20
--copyright stuff...
JACK compiled with System V SHM support.
cannot use real-time scheduling (FIFO at priority 10) [for thread
-1208138048, from thread -1208138048] (1: Operation not permitted)
cannot create engine
01:14:00.881 JACK was stopped successfully.
01:14:02.693 Could not connect to JACK server as client. Please check
the messages window for more info.
</pre>
</blockquote>
<pre wrap=""><!---->
You need to edit a configuration to allow non-root users to have access
to realtime scheduling and memory locking (that was "automatically" done
in Planet CCRMA with a patched version of the pam package).
In /etc/security/limits.conf add:
--- cut here ---
# or (default) allow everyone access
* - rtprio 99
* - nice -10
* - memlock 4000000
--- cut here ---
You'll need to logout and login again for that to take effect.
-- Fernando
</pre>
</blockquote>
It worked beautifully. Problem solved before I could even get those
guitar strings changed!<br>
<br>
Thank You, Fernando!<br>
<br>
B.<br>
<blockquote cite="mid1163900425.12079.31.camel@cmn3.stanford.edu"
type="cite">
<pre wrap="">
</pre>
<blockquote type="cite">
<pre wrap="">>From the terminal:
$ jackd -R -d alsa -d hw -r 44100 start
--copywrite stuff..
JACK compiled with System V SHM support.
cannot use real-time scheduling (FIFO at priority 10) [for thread
-1208932672, from thread -1208932672] (1: Operation not permitted)
cannot create engine
$ jackd -d alsa -d hw -r 44100 start
jackd 0.102.20
Copyright 2001-2005 Paul Davis and others.
jackd 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 compiled with System V SHM support.
loading driver ..
apparent rate = 44100
creating alsa driver ... hw|hw|1024|2|44100|0|0|nomon|swmeter|-|32bit
configuring for 44100Hz, period = 1024 frames, buffer = 2 periods
ALSA: final selected sample format for capture: 16bit little-endian
ALSA: use 2 periods for capture
ALSA: final selected sample format for playback: 16bit little-endian
ALSA: use 2 periods for playback
jack main caught signal 2
no message buffer overruns
Well, I guess that sort of answers my own question.... No R/T patches
no --realtime-priority option for jackd?
Am looking at Qjackctl, qjackctlrc (and looking for .jackdrc and not
finding) and how to remove option -R
Anyway, time to change the strings on the classical guitar...a
different kind of problem. Nice to have choices!
Brian
--
Digital Transmissions From An Analog World
</pre>
</blockquote>
<pre wrap=""><!---->
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</pre>
</blockquote>
<br>
<br>
<div class="moz-signature">-- <br>
<a href="http://hermetic.freeshell.org/">Digital Transmissions From An
Analog World</a>
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