[PlanetCCRMA] Need help getting JACK working on FC8

Fri May 16 04:21:27 PDT 2008

On Thu, 2008-05-15 at 22:39 -0700, Paul Vallee wrote:
> hmm, as I was saying...
> 
> When I try to startup jack with the JACK Audio Connection Kit I get
> the following output in the messages window:
> 
> With realtime option selected in Setup:
> 21:05:23.603 Patchbay deactivated.
> 21:05:23.680 Statistics reset.
> 21:05:23.796 ALSA connection graph change.
> 21:05:23.924 ALSA connection change.
> 21:07:48.630 Startup script...
> 21:07:48.631 artsshell -q terminate
> 21:07:49.078 Startup script terminated with exit status=256.
> 21:07:49.082 JACK is starting...
> 21:07:49.084 /usr/bin/jackd -R -P70 -dalsa -dhw:0 -r48000 -p64 -n2 -m
> jackd 0.109.12
> 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.
> 21:07:49.124 JACK was started with PID=6336.
> loading driver ..
> Enhanced3DNow! detected
> SSE2 detected
> apparent rate = 48000
> creating alsa driver ... hw:0|hw:0|64|2|48000|0|0|nomon|swmeter|-|
> 32bit
> control device hw:0
> configuring for 48000Hz, period = 64 frames (1.3 ms), buffer = 2
> periods
> ALSA: final selected sample format for capture: 32bit little-endian
> ALSA: use 2 periods for capture
> ALSA: final selected sample format for playback: 32bit little-endian
> ALSA: use 2 periods for playback
> **** alsa_pcm: xrun of at least 0.055 msecs
> **** alsa_pcm: xrun of at least 0.072 msecs
> ... many more xruns ...

What hardware do you have? You should not have that many xruns. If it is
an hda intel based card you have to have at least 3 buffers instead of 2
as you have now. 

> 21:07:51.150 Could not connect to JACK server as client. - Overall
> operation failed. - Unable to connect to server. Please check the
> messages window for more info.

Hmmm, probably a library problem. You are running the "testing" version
of jack and I imagine that has a problem in x86_64 (although other users
have installed before). I would suggest you revert to the "stable"
version. 

To do that you could:
- disable the repo files installed by planetccrma-repo-testing
- "rpm -e --nodeps jack-audio-connection-kit.i386"
- "rpm -e --nodeps jack-audio-connection-kit.x86_64"
(you have two packages because you have the i386 and x86_64 version
installed). 
- yum install jack-audio-connection-kit

-- Fernando

> ... many more xruns ...
> ... and so I stop it ...
> 21:07:55.842 JACK is stopping...
> **** alsa_pcm: xrun of at least 0.042 msecs
> jack main caught signal 15
> no message buffer overruns
> 21:07:55.893 JACK was stopped successfully.
> 21:07:55.895 Post-shutdown script...
> 21:07:55.897 killall jackd
> jackd: no process killed
> 21:07:56.365 Post-shutdown script terminated with exit status=256.
> 
> With realtime option unselected in Setup:
> 21:21:59.084 Patchbay deactivated.
> 21:21:59.262 Statistics reset.
> 21:21:59.395 ALSA connection graph change.
> 21:21:59.480 ALSA connection change.
> 21:22:10.464 Startup script...
> 21:22:10.465 artsshell -q terminate
> 21:22:10.911 Startup script terminated with exit status=256.
> 21:22:10.913 JACK is starting...
> 21:22:10.913 /usr/bin/jackd -dalsa -dhw:0 -r48000 -p64 -n2 -m
> 21:22:10.937 JACK was started with PID=6398.
> jackd 0.109.12
> 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 ..
> Enhanced3DNow! detected
> SSE2 detected
> apparent rate = 48000
> creating alsa driver ... hw:0|hw:0|64|2|48000|0|0|nomon|swmeter|-|
> 32bit
> control device hw:0
> configuring for 48000Hz, period = 64 frames (1.3 ms), buffer = 2
> periods
> ALSA: final selected sample format for capture: 32bit little-endian
> ALSA: use 2 periods for capture
> ALSA: final selected sample format for playback: 32bit little-endian
> ALSA: use 2 periods for playback
> **** alsa_pcm: xrun of at least 0.491 msecs
> **** alsa_pcm: xrun of at least 0.075 msecs
> ... many more xruns ...
> 21:22:13.000 Could not connect to JACK server as client. - Overall
> operation failed. - Unable to connect to server. Please check the
> messages window for more info.
> ... many more xruns ...
> ... so I stop it ...
> 21:22:16.732 JACK is stopping...
> **** alsa_pcm: xrun of at least 0.058 msecs
> jack main caught signal 15
> no message buffer overruns
> 21:22:16.779 JACK was stopped successfully.
> 21:22:16.784 Post-shutdown script...
> 21:22:16.785 killall jackd
> jackd: no process killed
> 21:22:17.230 Post-shutdown script terminated with exit status=256.
> 
> The only difference I can see is that JACK was reported to have
> actually started with the realtime option turned off but not when it
> was turned on. In either case though, the client could not connect to
> the server.
> 
> Here's my setup:
> 
> JACK Audio Connection Kit version:
> rpm -q jack-audio-connection-kit
> jack-audio-connection-kit-0.109.12-0.svn1135_942.1.fc8.ccrma
> jack-audio-connection-kit-0.109.12-0.svn1135_942.1.fc8.ccrma
> - there seems to be 2 of them! Maybe because I have 2 versions of the
> planetccma kernel installed. Could this cause problems?
> 
> planetccrma kernel version:
> 2.6.24.6-1.rt3.4.fc8.ccrmart.x86_64
> 
> I have the following lines at the bottom of
> the /etc/security/limits.conf
> ## Automatically appended by the Planet CCRMA
> jack-audio-connection-kit
> * - rtprio 99
> * - memlock 4194304
> * - nice -10
> 
> Snippets from /var/log/messages that might be relevant:
> May 15 14:12:06 localhost kernel: Linux version
> 2.6.24.6-1.rt3.4.fc8.ccrmart (mockbuild at cm-matlab.stanford.edu) (gcc
> version 4.1.2 20070925 (Red Hat 4.1.2-33)) #1 SMP PREEMPT RT Tue May 6
> 16:44:13 EDT 2008
> ...
> May 15 14:12:06 localhost kernel: Real-Time Preemption Support (C)
> 2004-2007 Ingo Molnar
> ...
> May 15 14:12:06 localhost kernel: Clockevents: could not switch to
> one-shot mode:<6>Clockevents: could not switch to one-shot mode: lapic
> is not functional.
> May 15 14:12:06 localhost kernel: Could not switch to high resolution
> mode on CPU 0
> May 15 14:12:06 localhost kernel:  lapic is not functional.
> May 15 14:12:06 localhost kernel: Could not switch to high resolution
> mode on CPU 1
> ...
> May 15 14:12:06 localhost kernel: Clockevents: could not switch to
> one-shot mode:<6>Clockevents: could not switch to one-shot mode: lapic
> is not functional.
> May 15 14:12:06 localhost kernel: Could not switch to high resolution
> mode on CPU 1
> May 15 14:12:06 localhost kernel:  lapic is not functional.
> May 15 14:12:06 localhost kernel: Could not switch to high resolution
> mode on CPU 0
> ...
> May 15 14:12:06 localhost kernel: ALSA sound/pci/hda/hda_intel.c:732:
> codec_mask = 0x1
> ...
> May 15 14:12:06 localhost kernel: Clocksource tsc unstable (delta =
> -62578070 ns)
> ...
> May 15 14:12:55 localhost pulseaudio[3053]: main.c: This program is
> not intended to be run as root (unless --system is specified).
> May 15 14:12:56 localhost pulseaudio[3053]: alsa-util.c: Device (null)
> doesn't support 44100 Hz, changed to 48000 Hz.
> May 15 14:12:56 localhost pulseaudio[3053]: alsa-util.c: Device (null)
> doesn't support 44100 Hz, changed to 48000 Hz.
> May 15 14:12:56 localhost pulseaudio[3053]: alsa-util.c: Cannot find
> fallback mixer control "Mic".
> ...
> May 15 14:16:53 localhost pulseaudio[3354]: polkit.c: Failed to show
> grant dialog: Unable to lookup exe for caller
> May 15 14:16:53 localhost pulseaudio[3354]: polkit.c: PolicyKit
> responded with 'auth_admin_keep_always'
> May 15 14:16:53 localhost pulseaudio[3354]: main.c:
> setrlimit(RLIMIT_NICE, (31, 31)) failed: Operation not permitted
> May 15 14:16:53 localhost pulseaudio[3354]: alsa-util.c: Device (null)
> doesn't support 44100 Hz, changed to 48000 Hz.
> May 15 14:16:53 localhost pulseaudio[3354]: alsa-util.c: Device (null)
> doesn't support 44100 Hz, changed to 48000 Hz.
> May 15 14:16:53 localhost pulseaudio[3354]: alsa-util.c: Cannot find
> fallback mixer control "Mic".
> ...
> 
> I hope this is is enough information to spark some ideas about how to
> get JACK working on my machine.
> 
> -- 