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

[Wendy Van Wynsberghe]

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