I have a project that I was working on in 2.3 and I started getting this error.<br>
<br>
    JACK has either been shutdown or it<br>
    disconnected Ardour because Ardour<br>
    was not fast enough. Try to restart<br>
    JACK, reconnect and save the session.<br>
<br>
It got the point where I couldn't work on the project anymore. I could
open the project and playback my song, but as soon as I stopped
playback that message would pop up and JACK would get Xruns. My session
isn't extroidinary, it has 7 drum tracks that I recorded from Hydrogen,
2 guitar tracks and a bus. It has 7 effects running which doesn't seem
like a lot since I have run more effects in Abelton Live and Adobe
Audition before.<br>
I investigated and tried to make sure my system was tweaked correctly.
I am running Ubuntu Studio Hardy with real time kernel 2.26.24. I have
my audio group setup in the limits file with unlimited memlock. My
system has a 1.8GHz Core Duo and 2GB of ram. I don't have any hefty
daemons/processes running. I am using a Edirol UA-4fx USB audio
interface. I have jack setup with 128 frames and 3 periods. I got the
same results when I turned the frames up to 1024. Ardour plays/records
fine in a new session with just a few tracks. Other audio apps work
fine with Jack. I built .116 jack and 2.7 Ardour from source with
optimize flags and still get the same result. My hard drive is running
in udma6 mode and gets 900MB/sec cached read and 40MB/sec buffered disk
read. I have run the realTimeConfigQuickScan.pl from <a href="http://wiki.linuxmusicians.com/" target="_blank">http://wiki.linuxmusicians.com</a> and all checks are good. I am out of ideas and just want to make music, any help is greatly appreciated.<br>

<br>
Thanks.