[Ardour-Users] xruns??? or soemthins else makes my playhead freeze and Ardour crash

[sonofzev at iinet.net.au]

HI Wendy, 
The other guys are making some good suggestions with regards to the
software layer and it is still worth trying. I'm going to make an
attempt at the hardware layer. 
You mention that you have a new core i3 .. try turning off all turbo
boost settings .. and even powersaving settings in bios .... (there
are more elegant ways around this but this could prove what is going
wrong. ).. 
I have found that when CPU's start adjusting their speed automagically
to balance battery usage with CPU grunt that audio software doesn't
take too well to it. The newer the cpu the more aggressive this
behaviour is I haven't got experience with intels past core 2 .. but
the newer AMD's have the same issue .. (I turn off turbo core and
powerscaling on my audio computer and get much better performance)
.. 
Something worth trying .. Noel's suggestion of ditching ubuntu for
avlinux is also a very good one.. general distros aren't great for
audio work.  (ubuntu-studio is worth looking at) 

cheers
Allan 

 

----- Original Message -----
From: wendy at constantvzw.com
To:
Cc:
Sent:Mon, 21 May 2012 16:00:26 +0200
Subject:[Ardour-Users] xruns??? or soemthins else makes my playhead
freeze and Ardour crash

 Hey

 I'm getting a bit at wit's end :-/
 When I use Ardour on my current computer, a Thinkpad Edge, it
 violently crashes without warning.
 I have xruns, the playhead stops playing, Jack quits, hence I can't
 save my session and I have to kill Ardour through the terminal

 - I run:
 Ubuntu
 Release 12.04 (precise) 32-bit
 Kernel Linux 3.2.0-24-generic-pae
 GNOME 3.4.1 (NOT Unity or whatever)
 Hardware
 Memory 3.7 GiB
 Intel® Core™ i3 CPU U 380 @ 1.33GHz × 4

 The previous Ubuntu version gave me the same stuff - that's why I
upgraded

 -. I have tried all kinds of stuff, read a gazilion pages through the
 net, support stuff, change Jack configurations (but this does not
seem
 to change the way alsa is configured --> when looking at the terminal
 data), convert 16 bot wavs to 32 bit, use a Zoom H2 as soundcard etc
 etc

 ---> My 5 year old computer never did this..

 I start up Ardour in the terminal, which gives me this : (I did blank
 out my home folder manually - privacy :-))

 Ardour 2.8.12
 (built using 10144 and GCC version 4.6.1)
 Copyright (C) 1999-2008 Paul Davis
 Some portions Copyright (C) Steve Harris, Ari Johnson, Brett Viren,
Joel Baker

 Ardour comes with ABSOLUTELY NO WARRANTY
 not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 This is free software, and you are welcome to redistribute it
 under certain conditions; see the source for copying conditions.
 loading default ui configuration file
/etc/ardour2/ardour2_ui_default.conf
 loading user ui configuration file /home/...
 Loading ui configuration file /etc/ardour2/ardour2_ui_dark.rc
 theme_init() called from internal clearlooks engine
 ardour: [INFO]: Ardour will be limited to 4096 open files
 loading system configuration file /etc/ardour2/ardour_system.rc
 loading user configuration file /home/...
 ardour: [INFO]: No H/W specific optimizations in use
 ardour: [INFO]: looking for control protocols in /home/...
 ardour: [INFO]: Control protocol Tranzport not usable
 powermate: Opening of powermate failed - No such file or directory
 ardour: [INFO]: Control protocol powermate not usable
 ardour: [INFO]: Control surface protocol discovered: "Generic MIDI"
 ardour: [INFO]: Control surface protocol discovered: "Mackie"
 JACK COMMAND: /usr/bin/jackd -p 128 -R -P 60 -T -d alsa -n 2 -r 48000
 -p 1024 -d hw:0,0
 jackd 0.121.2
 Copyright 2001-2009 Paul Davis, Stephane Letz, Jack O'Quinn, Torben
 Hohn 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 = 48000
 creating alsa driver ...
hw:0,0|hw:0,0|1024|2|48000|0|0|nomon|swmeter|-|32bit
 control device hw:0
 configuring for 48000Hz, period = 1024 frames (21.3 ms), buffer = 2
periods
 ALSA: final selected sample format for capture: 32bit integer
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
 loading bindings from /home...

 (ardour-2.8.12:3554): Gtk-WARNING **: EnableTranslation: missing
 action EnableTranslation
 Session writable based on ++My folders++

 Xruns:::::
 ------------------------------------------------------------------------------------------

 **** alsa_pcm: xrun of at least 39.355 msecs

 subgraph starting at ardour timed out (subgraph_wait_fd=11, status =
 0, state = Triggered, pollret = 0 revents = 0x0)
 pp: cannot clean up byte from graph wait fd (Resource temporarily
unavailable)

 **** alsa_pcm: xrun of at least 1.762 msecs

 **** alsa_pcm: xrun of at least 23.954 msecs

 ^Cjack main caught signal 12

 ------> What else can I do to find out what's going on?

 WHat can I do to solve this?

 Greetz
 w
 _______________________________________________
 Ardour-Users mailing list
 ardour-users at lists.ardour.org
 http://lists.ardour.org/listinfo.cgi/ardour-users-ardour.org

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ardour.org/pipermail/ardour-users-ardour.org/attachments/20120522/483594c6/attachment-0002.htm>