Re: Jack fails in QJackCtl but not in command line

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On Sun, 3 May 2015, Anton Curl wrote:

Some news:

I reinstalled jackd1 instead of jackd2. QJackCtl now runs jack without error. But
ladiconf depends on jackd2. So I can't use Gladish, which is very annoying for
me.

Furthermore, Puleaudio sink and source are no more created automatically in Jack.
I have to add supplementary lines in /etc/pulse/default.pa, then kill Pulseaudio,
and when it restarts, it appears in jackd connections. It's also not very
practical.

With jack2, I have found chmod -x /usr/bin/jackd helps. jackd does not do auto-pulse or gladish either anyway. What that leaves is jackdbus which is what qjackctl starts.

You can also play with jack_control for trouble shooting.

jack_control ds alsa dps capture hw:5,1 dps playback hw:5,0 dps \
	rate 44100 dps period 256 dps nperiods 2 dps midi-driver seq \
	ep realtime-priority 80 start

Should give you the same thing as the command below... but run jackdbus instead.


On 02/05/2015 23:51, Anton Curl wrote:
      Hi everyone!

      To launch jack I run:
            /usr/bin/jackd -P80 -dalsa -r44100 -p256 -n2 -Xseq -D
            -Chw:5,1 -Phw:5,0


Ya, I know that is a long command line  :)

Personally, I would remove the dps midi-driver seq (-Xseq) and add the command:

a2j_control ehw start

But that is personal preference. You may have a better idea than I why you want seq.


--
Len Ovens
www.ovenwerks.net

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