[linux-audio-user] Problems starting JACK...

Carlos Pino pinojazz at gmail.com
Sun Nov 13 12:06:22 EST 2005

> Hi,sorry about the delay of the answer,I'd been very busy.
> First of all tank you  very much for interesting in my message,I 
> couldn't imagine to have a response from the main developer of one of 
> the best things made for Linux-Audio,and excuse my english.
>     I'm very newbie in this kind of linux tasks,and try to learn as 
> much as I can.
>     I'm trying to build my own audio-system and compile only the more 
> ussual  apps for me;Ardour and Jack are the main core of this.By now I 
> take the Demudi kernel till I learn to compile my own,and compile with 
> succes Ardour and some other apps.Before try to compile jack I 
> installed it from Sid  and everythings works fine  but the message 
> that shows at the window messages, that doesn't  have influence  with 
> the normal function of jackd.
> Paul Davis escribió:
>> On Fri, 2005-11-11 at 17:33 +0100, Carlos Pino wrote:
>>> Yeah,you are right .I complied jackd as you say and the "cannot 
>>> write to jackstart sync pipe 4 (Bad file descriptor)" message  
>>> doesn't appears  anymore.Now the problem is  with ardour,that 
>>> doesn't want to start after thhis compilation.
>>>   Here is the output  :
>> my guess is that you have just committed the cardinal sin of setting up
>> your system so that there are two versions of JACK installed.you
>> started one, and ardour is trying to start the other. i wish we could
>> detect this situation and report it more accurately, but we don't know
>> how to right now. you should never ever have more than 1 JACK install on
>> a machine unless you are confident that you know everything there is to
>> know about JACK, and perhaps not even then.
>  Ok it will be present in the future.
>> when you recompiled JACK, did you remove the old version first?
>   I did many things in the procces and probably no.At the second time 
> I remove all about jack and try again.But if I remove the compilation 
> installed and do an apt-get install jackd,everything goes back to the 
> fine working but the "cannot write to jackstart sync pipe 4 (Bad file 
> descriptor)" message return.
>> what
>> --prefix= argument did you give configure?
>  First I did --prefix=/usr    and later leave blank to use the default 
> settings
>  Now I'm at the begin again,I removed all the jack staff and have the 
> source code to try to compile.I will read more about this and see what 
> happens.
>> --p
> Again thank you very much for your interest.
> Saludos from Spain
> Cheers
> -- Carlos.

 Hi again Paul and everyone at the list,after recompile jack I'd 
recompile ardour  and qjackctl.Everything is working better now .
  To compile jack I did:
   configure --prefix=/usr --enable-posix-shm 

 For Ardour I did:

For qjackctl :
 configure --prefix=/usr

   Thanks a lot.
 -- Carlos

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