Cannot start jack from KDE

Hey guys,

I just installed jack and when I launch it from super user
status in a 
terminal, it'll load, but when I installed qjackctl and
added it to KDE's 
start menu, it won't connect to Jack. I need to start jack
manually by 
opening up Konsole, going into SU mode and running it. It
then freezes the 
terminal window (ie. I can no longer enter commands).

So, is there a way so that I can launch the server with
qjackctl from KDE 
without needed to get super user privileges. I added my user
to the audio 
group.

Here's what I get in the message window for qjackctl when
running it from 
the gui

cannot lock down memory for jackd (Cannot allocate memory)
loading driver ..
apparent rate = 48000
creating alsa driver ...
hw:0|hw:0|1024|2|48000|0|0|nomon|swmeter|-|32bit
control device hw:0
the playback device "hw:0" is already in use.
Please stop the application 
using it and run JACK again
cannot load driver module alsa
14:35:08.448 JACK was stopped successfully.
14:35:10.433 Could not connect to JACK server as client.
Please check the 
messages window for more info.


Thanks in advance

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On Tue, 2007-04-17 at 20:50 -0400, Chris Delahousse wrote:
> Hey guys,
> 
> I just installed jack and when I launch it from super
user status in a 
> terminal, it'll load, but when I installed qjackctl and
added it to KDE's 
> start menu, it won't connect to Jack. I need to start
jack manually by 
> opening up Konsole, going into SU mode and running it.
It then freezes the 
> terminal window (ie. I can no longer enter commands).
> 
> So, is there a way so that I can launch the server with
qjackctl from KDE 
> without needed to get super user privileges. I added my
user to the audio 
> group.

with released versions of JACK, the user who starts jackd
and the user
who starts JACK applications must be the same. if you are
using root to
start it so that you can use SCHED_FIFO (-R), please fix
your system to
allow non-root users to do that. google will reveal all
(even though the
jackaudio.org website should).

earlier today, i committed some changes to svn that allow a
more
"promiscuous" model. 

--p



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On 4/17/07, Chris Delahousse <dahouse7hotmail.com> wrote:
> the playback device "hw:0" is already in use.
Please stop the application
> using it and run JACK again

Did you try this?  Sounds like artsd is blocking the sound
device.
You need to kill it for JACK to work.

Lee

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