Ever increasing value when running jack_iodelay

[claypool]

Hi all,
I am a bit of a newbie, so I apologize in advance for the possibly stupid questions...

I am trying to compensate my USB soundcard's latency using jack_iodelay, but the results I get from the terminal are somehow baffling.
I am using KXstudio installed on a Dell XPS 13 Developer Edition laptop running Ubuntu 12.04. I upgraded to KXstudio from the repos as per http://kxstudio.sourceforge.net/Documen ... ry:Upgrade.

I am using jack_iodelay as per instructions on the KXstudio documentation, but the values I get are continuously increasing...
As soon as I launch the jack_iodelay command, in "use X for the backend arguments -I and -O", "X" begins with a certain value (never the same) and continuously increases. If I don't stop the command, it never stops rising... I don't know what to do. I searched in the forums but I found nothing like this...

My soundcard is a USB M-Audio Fast Track Ultra, and my settings are: sample rate=44100, Buffer size=128, Periods/Buffer=3. I have tried using also sample rate=48000/96000 and sample rate=256 in several combinations with the above settings, but without change.
I use this sound card with my laptop, to record music in the rehearsal room with my drummer (I play bass), and at home with my desktop PC to do some mixing and stuff.

I had no problems running the same procedure on my desktop PC, which has the same setup, the only difference being that I did a fresh install of KXstudio 12.04 from the DVD. On the desktop PC, the X value was 172, I inserted it in Cadence and re-ran the command and got X = 0.

Any help really appreciated!
Thanks in advance

[claypool]

The problem is solved.

It was enough to upgrade the Low latency kernel fm 3.2-X-XX to 3.8.0-32 and all is good now.

Thanks