[LAU] I really need help with jack

Bob van der Poel bob at mellowood.ca
Sun Jan 27 02:14:23 UTC 2013

On Sat, Jan 26, 2013 at 6:54 PM, Len Ovens <len at ovenwerks.net> wrote:
> On Sat, January 26, 2013 3:47 pm, Bob van der Poel wrote:
>>   pasuspender -- jackd  -d alsa  hw:HDA ATI SB,0
>>  pasuspender -- jackd  -d alsa  hw:HDA ATI SB,1
>>  pasuspender -- jackd  -d alsa  hw:HDA ATI SB,2
>>  pasuspender -- jackd  -d alsa  hw:HDA ATI SB,3
> You are missing a switch, The first -d says use the alsa backend... then
> you need to do -d hw:1
> Also, make sure jackdbus is not already running with:
>  jack_control exit
> Then try:
> pasuspender -- jackd  -d alsa  -d hw:1
> --
> Len Ovens
> www.OvenWerks.net

Not sure if this is progress or regression. I grabbed the jack_control
package, which also changed my jackd1 to jackd2. Not sure what the
difference is. But, now if I start jack I don't even get the xrun
messages, etc.

I stopped pulse completely. (yes, checked and it's not respawing!).

bob$ jackd  -d alsa
jackdmp 1.9.8
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2011 Grame.
jackdmp 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 server starting in realtime mode with priority 10
Cannot lock down 82241434 byte memory area (Cannot allocate memory)
control device hw:0
control device hw:0
Acquire audio card Audio0
creating alsa driver ... hw:0|hw: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

That's it.

That was with no -d. Adding in -d hw:1 etc gives the same results.


bob$ jack_control status
--- status

 bob$ jack_control sm
--- switch master driver
DBus exception: org.jackaudio.Error.ServerNotRunning: Can't execute
method 'SwitchMaster' with stopped JACK server

Hope this means something to someone :)

**** Listen to my CD at http://www.mellowood.ca/music/cedars ****
Bob van der Poel ** Wynndel, British Columbia, CANADA **
EMAIL: bob at mellowood.ca
WWW:   http://www.mellowood.ca

More information about the Linux-audio-user mailing list