Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Here's my problem :

I just have installed QJackCtl on my Ubuntu 12.04 and when I start Jack I got this issue :

12:01:22.769 /usr/local/bin/jackd -dalsa -dhw:0 -r44100 -p1024 -n3 -i1 -o2
Cannot connect to server socket err = Aucun fichier ou dossier de ce type
Cannot connect to server socket
jack server is not running or cannot be started
Unknown driver "alsa"

If anyone knows the solution It would help me a lot !

share|improve this question
have you tried starting the application you need it for before starting jack server? – daithib8 Jun 9 '12 at 12:12
Yes I have , and it change nothing . – user69458 Jun 9 '12 at 15:03

My guess is you don't have the alsa-devel package installed, so when you compiled jackdmp it couldn't link to alsa.

Install that and recompile and I'm sure it'll work

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.