[LAU] Jack fails in QJackCtl but not in command line

Anton Curl curl.anton at gmail.com
Sun May 3 14:09:35 UTC 2015


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.

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
>
> This is what I have in my .jackdrc.
>
> In command line, there is no problem. It works perfectly. But if I try 
> to launch Jack with this parameters through QJackCtl, I get this in 
> the message window:
>
>     creating alsa driver ...
>     hw:5,1|hw:5,1|256|3|44100|0|0|nomon|swmeter|-|32bit
>
> The 5.0 output becomes 5.1. I don't understand why.
>
> Does anyone have an idea of what happen ?
>
> Sound card: Fast Track Pro
> OS: Ubuntu 12.04
> Jack: jackdmp 1.9.8
> QjackCtl: 0.3.8
> pulseaudio-module-jack installed and Fast Track Pro disabled in PulseAudio
>
> Anton Curl

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