Ardour isn't able to connect to JACK

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Sapphire
User offline. Last seen 6 years 47 weeks ago. Offline
Joined: 2007-05-15
Posts:

Hy

I managed it to install Ardour 2.0.2 on my Ubuntu Feisty System.

But now, when I try to start Ardour there is a dialogue that says that Ardour isn't able to connect to JACK.

There are given 3 possible reasons for this problem:

1) JACK isn't running.
2) JACK was started under another user, possibly root.
3) There's another client called 'ardour'.

(this is translated from German into English)

I already tested whether JACK is running by typing

which jack

in the Terminal. The result was the line:

/usr/src/jack

so Jack is running.

I'm not able to solve the problem, maybe you are able to solve it.
Please help me,

Sapphire

paul
paul's picture
User offline. Last seen 46 min 58 sec ago. Offline
Joined: 2006-03-16
Posts:

1) the existence of /usr/src/jack does not mean that JACK is running

2) it appears that you did not install JACK from a Ubuntu package which is probably a better approach for you

3) you should also install qjackctl and use it to start jack, just because its easier and prettier.

Sapphire
User offline. Last seen 6 years 47 weeks ago. Offline
Joined: 2007-05-15
Posts:

qjackctl is installed

But maybe its enough when you just tell me how to start a jack server

eLRIC
User offline. Last seen 4 years 30 weeks ago. Offline
Joined: 2007-01-21
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You can use something like

jackd -R -dalsa -dhw:0 -r48000 -p256 -n2

Anyway, qjackctl may be easier to find the proper parameters for you (depending on your soundcard and kernel, "realtime" latencies may not be reachable)