Re: [LAU] [hdspmixer solved - qjackctl unsolved]

From: Robin Gareus <robin@email-addr-hidden>
Date: Thu Jun 09 2011 - 00:54:20 EEST

On 06/08/2011 08:36 PM, Ralf Mardorf wrote:
[SNIP]

So, summa summarum:

There were a few configure/compiler warnings and a few tweaks needed,
but you got your [audio] system set up; with only one remaining issue:

qjackctl fails to start jackd2. - but if jackd is started manually
qjackctl can connect to it.

Is that about right?

When you start jackd manually you do not specify an interface (it uses
"-dhw:0,0" as default) and that apparently works:

> jackd --sync -Xalsarawmidi -dalsa -r48000 -p1024

correct?

Yet with qjackctl you don't specify an interface globally but configure
Input and Output devices separately:

> jackd -dalsa -r48000 -p1024 -n2 -D -Chw:1 -Phw:1

Does the following command work starting jackd from the commandline?
  jackd -dalsa -r48000 -p1024 -n2 -dhw:1

If it fails:
 - try `aplay -Dhw:1 some_audio.wav` -> does the hw:1 soundcard work?
 - if the soundcard works: please tell us the version of jackd

If launching jackd from the commandline works with -dhw:1

Did you try the suggestion to leave "Input Device" and "Output Device"
as "default" and only set "Interface" = "hw:0" or "hw:1" (in qjackctl's
setup dialog).

Try to configure qjackctl so that it calls
  jackd -dalsa -r48000 -p1024 -n2 -dhw:1
instead of .... -Chw:1 -Phw:1

If you don't succeed: Please tell us the version of qjackctl
and post your qjackctl config. (or make a screenshot of the setup window
and send us _a link_ to the image. This email list won't allow large
file attachments.)

ciao,
robin

PS. You can specify the '--sync' and '-Xalsarawmidi' options as part of
the "Server Path" in qjackctl. - but only do that later when everything
else works.

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Received on Thu Jun 9 04:15:01 2011

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