QjackCtl want start

ozotto · May 12, 2015, 1:03am

Ever since I upgraded to 13.2 I encounter sound problems ?!? Anyway QjackCtl want start

And gives me an interesting msg “ALSA connection graph changed”

I have the feeling thats where the problem is.

Any Idea how to influence this?

Thanks and cheers

ozotto · May 12, 2015, 1:58am

Just the full error msg

 09:49:31.392 Logging started --- Tue May 12 09:49:31 2015 ---
 09:49:31.410 Patchbay deactivated.
 09:49:31.414 Statistics reset.
 09:49:31.415 ALSA connection change.
 09:49:41.429 JACK is starting...
 09:49:41.430 jackdmp -P80 -u -dalsa -r48000 -p256 -n2 -H -M -Xseq -D -Chw:M1010LT,0 -Phw:M1010LT,0 -zt
 Cannot read socket fd = 15 err = Success
 Cannot open qjackctl client
 CheckRes error
 JackSocketClientChannel read fail
 Cannot read socket fd = 15 err = Success
 CheckRes error
 JackSocketClientChannel read fail
 Cannot open qjackctl client
 09:49:41.479 ALSA connection graph change.
 09:49:41.529 Could not start JACK. Sorry.
 09:50:24.582 JACK was stopped with exit status=255.

gogalthorp · May 12, 2015, 2:00am

Be sure the jack to pulse libraries are installed.

ozotto · May 12, 2015, 9:13pm

Should be, it was working before ?!?

ozotto · May 12, 2015, 11:55pm

I am at a loss , Pulseaudio does not work either ???

gogalthorp · May 13, 2015, 12:49am

You get any sound?? Be sure that volume is not muted and not set to 0

In Yast check the drivers if you have more then one try changing the order. or install pavulcontrol. You can adjust ins and outs for any program that uses sound

ozotto · May 13, 2015, 4:33am

Yes I get sound via Amarok and testsound via multimedia setting

PulseAudio Manager does not connect.I tryed to start manually “start-pulseaudio-x11” with no result.

I wonder if it some hangs together with the QjackCtl problem.

gogalthorp · May 13, 2015, 5:13am

unless you turned it off pulse is on by default. So totally confused on your setup.

consused · May 13, 2015, 11:00am

You may already know this: JACK and PulseAudio don’t coexist. PA’s daemon needs to be “killed” or “suspended”. How are you doing that?

Assuming on 13.1 you had the necessary changes made to /etc/security/limits.conf, and corresponding user group (audio?) in order to run JACK. They are also needed on 13.2, have you checked there?

It works for me on both 13.1 and 13.2.

consused · May 13, 2015, 1:35pm

Also when you want PA you would need to stop and close JACK/QjackCtl. If the daemon “jackd” is still running, you will need to kill it, and close any app (e.g. rosegarden) that might be re-spawning it in order to do that.

For user account as member of “audio” group, /etc/security/limits.conf should have the following lines added:

@audio - rtprio 99
@audio - memlock unlimited

Note the edit requires root privileges.

Btw, you should be able to restart PA, as normal user, from command line with:

pulseaudio --start

If already running, the command ends normally.

ozotto · May 15, 2015, 3:51am

Hi

These entries were already in the file mentioned. Pulseaudio still does not work and I will put a new post out in this regards.
However I solved my QjackCtl problem :
I deleted all sound cards reboot and re installed. Then I tested the sound card in question with a mic and could see the signal but no sound (with plenty of other trys), looked into Hardware setting and “Word Clock” was set to “lock”. I had this before , unlocked it and QjackClt was working. I do not know why it defaulted back to “locked” it took me more then a week to figure it out.

Anyway thanks for your help and cheers
otto_oz