hi, new ubuntu, , have installed first time (ubuntu studio 11.04). after installing not able many of audio programmes work. after reading, realised due jack not starting.
unable jack start have been able started playback option selected. programmes use jack work, there no sound once jack has been started. sound work in other programs when jack not started. strangely, have open qjackctl sound stop, , jack not started. thought these problems due sound card not being supported, believe alsa support added via 1708 codec @ point. found support had been added in document showing changes between alsa versions; cannot find exact model listed supported sound card on alsa site.
believe altering jack settings fix problem, have been able audio work in hydrogen selecting plughw:0 there still no sound in other programs. have tried altering many other settings no avail, not understand meaning of settings adjusting.
know settings adjust or know else might fix problem sound works once jack has been started?
also, programmes use jack such audacity, hydrogen, , ardour work pulseaudio main sound server if install normal ubuntu - might worth seeing if soundcard works puleaudio sound server
if helps, here error message received when jack not start when normal duplex option selected.
21:24:04.867 patchbay deactivated.
21:24:04.868 statistics reset.
21:24:04.886 alsa connection change.
cannot connect server socket err = connection refused
cannot connect server socket
jack server not running or cannot started
21:24:04.900 alsa connection graph change.
21:24:06.469 jack starting...
21:24:06.470 /usr/bin/jackd -r -dalsa -dhw:0 -r44100 -p1024 -n2 -s
cannot connect server socket err = connection refused
cannot connect server socket
jack server not running or cannot started
no message buffer overruns
21:24:06.517 jack started pid=1552.
no message buffer overruns
jackdmp 1.9.7
copyright 2001-2005 paul davis , others.
copyright 2004-2010 grame.
jackdmp comes absolutely no warranty
free software, , welcome redistribute it
under conditions; see file copying details
jack server starting in non-realtime mode
control device hw:0
control device hw:0
audio_reservation_init
acquire audio card audio0
creating alsa driver ... hw:0|hw:0|1024|2|44100|0|0|nomon|swmeter|-|16bit
control device hw:0
using alsa driver hda-intel running on card 0 - hda ati sb @ 0xfe8f4000 irq 16
configuring 44100hz, period = 1024 frames (23.2 ms), buffer = 2 periods
alsa: final selected sample format capture: 16bit little-endian
alsa: use 2 periods capture
alsa: final selected sample format playback: 16bit little-endian
alsa: use 2 periods playback
21:24:13.534 not connect jack server client. - overall operation failed. - server communication error. please check messages window more info.
jackprocesssync::lockedtimedwait error usec = 5000000 err = connection timed out
driver not running
cannot create new client
jacksocketclientchannel read fail
cannot open qjackctl client
21:24:35.589 jack stopping...
jack main caught signal 15
here message playback when jack can started
21:26:35.540 patchbay deactivated.
21:26:35.540 statistics reset.
21:26:35.571 alsa connection change.
cannot connect server socket err = connection refused
cannot connect server socket
jack server not running or cannot started
21:26:35.580 alsa connection graph change.
21:26:36.366 jack starting...
21:26:36.367 /usr/bin/jackd -r -dalsa -dhw:0 -r44100 -p1024 -n2 -s -p
cannot connect server socket err = connection refused
cannot connect server socket
jack server not running or cannot started
21:26:36.402 jack started pid=1576.
no message buffer overruns
no message buffer overruns
jackdmp 1.9.7
copyright 2001-2005 paul davis , others.
copyright 2004-2010 grame.
jackdmp comes absolutely no warranty
free software, , welcome redistribute it
under conditions; see file copying details
jack server starting in non-realtime mode
control device hw:0
control device hw:0
audio_reservation_init
acquire audio card audio0
creating alsa driver ... hw:0|-|1024|2|44100|0|0|nomon|swmeter|-|16bit
control device hw:0
using alsa driver hda-intel running on card 0 - hda ati sb @ 0xfe8f4000 irq 16
configuring 44100hz, period = 1024 frames (23.2 ms), buffer = 2 periods
alsa: final selected sample format playback: 16bit little-endian
alsa: use 2 periods playback
**** alsa_pcm: xrun of @ least 0.040 msecs
**** alsa_pcm: xrun of @ least 0.060 msecs
**** alsa_pcm: xrun of @ least 0.071 msecs
**** alsa_pcm: xrun of @ least 0.058 msecs
**** alsa_pcm: xrun of @ least 0.061 msecs
**** alsa_pcm: xrun of @ least 0.060 msecs
**** alsa_pcm: xrun of @ least 0.060 msecs
**** alsa_pcm: xrun of @ least 0.059 msecs
**** alsa_pcm: xrun of @ least 0.045 msecs
**** alsa_pcm: xrun of @ least 0.060 msecs
**** alsa_pcm: xrun of @ least 0.055 msecs
**** alsa_pcm: xrun of @ least 0.056 msecs
**** alsa_pcm: xrun of @ least 0.054 msecs
**** alsa_pcm: xrun of @ least 0.052 msecs
**** alsa_pcm: xrun of @ least 0.060 msecs
**** alsa_pcm: xrun of @ least 0.060 msecs
21:26:38.457 jack connection change.
21:26:38.458 server configuration saved "/home/fox/.jackdrc".
21:26:38.458 statistics reset.
21:26:38.511 client activated.
21:26:38.517 xrun callback (1).
21:26:38.518 jack connection graph change.
**** alsa_pcm: xrun of @ least 0.074 msecs
jackposixmutex::unlock res = 1
**** alsa_pcm: xrun of @ least 0.063 msecs
jackposixmutex::unlock res = 1
**** alsa_pcm: xrun of @ least 0.060 msecs
jackposixmutex::unlock res = 1
**** alsa_pcm: xrun of @ least 0.052 msecs
here list of capture , playback devices
fox@ubuntu:~$ arecord -l && aplay -l
**** list of capture hardware devices ****
card 0: sb [hda ati sb], device 0: vt1708s analog [vt1708s analog]
subdevices: 2/2
subdevice #0: subdevice #0
subdevice #1: subdevice #1
**** list of playback hardware devices ****
card 0: sb [hda ati sb], device 0: vt1708s analog [vt1708s analog]
subdevices: 1/2
subdevice #0: subdevice #0
subdevice #1: subdevice #1
card 0: sb [hda ati sb], device 1: vt1708s digital [vt1708s digital]
subdevices: 1/1
subdevice #0: subdevice #0
fox@ubuntu:~$
, alsa information here
http://www.alsa-project.org/db/?f=e7...5e43437980cf4f
also, when open alsamixer in terminal reason headphone part greyed out, when sound working before qjackctl opened.
scroll down section "ubuntu studio , jack" on page:
http://ubuntuforums.org/showthread.php?t=843012
Forum The Ubuntu Forum Community Ubuntu Official Flavours Support Multimedia Software [ubuntu_studio] Via vt1708s Azalia No sound when starting jack sound server.
Ubuntu
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