[LAU] Re : Jack Crashing

Hi,
this audio device has been causing some trouble for quit a couple of people. There has been a lot of work on this device in recent alsa versions. Are you using a realtime kernel?
You could try to set
options snd-hda-intel model=ref position_fix=1 enable=1 index=0

in /etc/modprobe.d/sound (might be another file, this depends on your distro), the important being position_fix which can be 0 to 3.
Try sudo modinfo snd-hda-intel to get information on this,
and different values for position_fix. You'll need to reboot to see changes.
For some this worked....
Good luck
Frank

--- En date de : Mer 28.1.09, Steven Tonge <stonge@email-addr-hidden> a écrit :

> De: Steven Tonge <stonge@email-addr-hidden>
> Objet: [LAU] Jack Crashing
> À: linux-audio-user@email-addr-hidden
> Date: Mercredi 28 Janvier 2009, 15h34
> Hi,
>
> I'm having trouble with Jack on a Dell D420 laptop.
> Sound is configured
> and plays fine but when I start jack I get regular xruns
> and then it
> crashes after about 30 seconds. If I start and audio app, I
> can see it
> appear in the connections, but no sound plays and then when
> jackd goes
> down, it complains about a broken pipe. I'm totally
> stumped. Its not a
> problem with the frames/period as I've tried all
> different combos (up to
> 1024 frames/period with 8 periods per buffer) All that is
> displayed in
>
> Any ideas?
>
> lspci reports:
>
> 00:1b.0 Audio device: Intel Corporation 82801G (ICH7
> Family) High
> Definition Audio Controller (rev 01)
>
> lsmod reports:
>
> snd_rtctimer 4640 1
> snd_hda_intel 346136 3
> snd_pcm_oss 42400 0
> snd_mixer_oss 18048 1 snd_pcm_oss
> snd_pcm 78852 2 snd_hda_intel,snd_pcm_oss
> snd_page_alloc 11400 2 snd_hda_intel,snd_pcm
> snd_hwdep 10628 1 snd_hda_intel
> snd_seq_dummy 4868 0
> snd_seq_oss 35968 0
> snd_seq_midi 9376 0
> snd_rawmidi 25632 1 snd_seq_midi
> snd_seq_midi_event 8576 2 snd_seq_oss,snd_seq_midi
> snd_seq 54992 10
> snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
> snd_timer 24836 3
> snd_rtctimer,snd_pcm,snd_seq
> snd_seq_device 9612 5
> snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
> snd 57636 20
> snd_rtctimer,snd_hda_intel,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_hwdep,snd_seq_dummy,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
> soundcore 9312 1 snd
>
> /usr/bin/jackd -v -R -p1024 -t5000 -dalsa -dhw:0 -r44100
> -p1024 -n8 gives:
>
> getting driver descriptor from
> /usr/lib/jack/jack_freebob.so
> getting driver descriptor from /usr/lib/jack/jack_oss.so
> getting driver descriptor from /usr/lib/jack/jack_alsa.so
> getting driver descriptor from /usr/lib/jack/jack_dummy.so
> jackd 0.109.2
> 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.
> server `default' registered
> registered builtin port type 32 bit float mono audio
> registered builtin port type 8 bit raw midi
> clock source = system clock via clock_gettime
> loading driver ..
> new client: alsa_pcm, id = 1 type 1 @ 0x805a4c0 fd = -1
> apparent rate = 44100
> creating alsa driver ...
> hw:0|hw:0|1024|8|44100|0|0|nomon|swmeter|-|32bit
> control device hw:0
> configuring for 44100Hz, period = 1024 frames (23.2 ms),
> buffer = 8 periods
> ALSA: final selected sample format for capture: 32bit
> little-endian
> ALSA: use 8 periods for capture
> ALSA: final selected sample format for playback: 32bit
> little-endian
> ALSA: use 8 periods for playback
> new buffer size 1024
> registered port system:capture_1, offset = 4096
> registered port system:capture_2, offset = 8192
> registered port system:playback_1, offset = 0
> registered port system:playback_2, offset = 0
> ++ jack_rechain_graph():
> client alsa_pcm: internal client, execution_order=0.
> -- jack_rechain_graph()
> 7314 waiting for signals
> new client: alsa-jack.jackP.7319.0, id = 2 type 2 @
> 0xb7edd000 fd = 10
> registered port alsa-jack.jackP.7319.0:out_000, offset =
> 12288
> registered port alsa-jack.jackP.7319.0:out_001, offset =
> 16384
> ++ jack_rechain_graph():
> client alsa_pcm: internal client, execution_order=0.
> client alsa-jack.jackP.7319.0: start_fd=5,
> execution_order=0.
> client alsa-jack.jackP.7319.0: wait_fd=7, execution_order=1
> (last client).
> -- jack_rechain_graph()
> connect alsa-jack.jackP.7319.0:out_000 and
> system:playback_1 (output)
> ++ jack_rechain_graph():
> client alsa_pcm: internal client, execution_order=0.
> client alsa-jack.jackP.7319.0: start_fd=5,
> execution_order=0.
> client alsa-jack.jackP.7319.0: wait_fd=7, execution_order=1
> (last client).
> -- jack_rechain_graph()
> connect alsa-jack.jackP.7319.0:out_001 and
> system:playback_2 (output)
> ++ jack_rechain_graph():
> client alsa_pcm: internal client, execution_order=0.
> client alsa-jack.jackP.7319.0: start_fd=5,
> execution_order=0.
> client alsa-jack.jackP.7319.0: wait_fd=7, execution_order=1
> (last client).
> -- jack_rechain_graph()
> jackd watchdog: timeout - killing jackd
>
> Thanks
>
> Steven
>
> --
> The University of Edinburgh is a charitable body,
> registered in
> Scotland, with registration number SC005336.
>
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Received on Wed Jan 28 20:15:01 2009