[PlanetCCRMA] Jack problem / system hangs...

Raphael Raccuia rafael.raccuia at blindekinder.com
Fri Oct 30 05:17:58 PDT 2009

Hi fernando and juan,
thanks for your answers...

Fernando Lopez-Lezcano a écrit : 
> On Tue, 2009-10-27 at 10:28 +0100, Raphael Raccuia wrote:
> > Hi,
> > I use F10/CCRMA since one year, and I like it because of his good
> > stability. 
> > But I had some major problems last weeks, after a break using my
> > computer:
> > -Jackd: I start well (FFADO / Edirol FA-101), and is very stable (was
> > not the case on Ubuntu Studio). But now, I can't connect the patch. Some
> > names are corrupted (char coding problem), like:
> > Original/entrée 1
> > and it's impossible to connect, with message:
> > 
> > Unknown destination port in attempted (dis)connection src_name
> > [system:AC6_dev0_LineIn 7+8 left] dst_name [ardour:Original/entrée 1]
> >     
> What version do you have of qjackctl? ("rpm -q qjackctl" to find out).
> There was an update being pushed by Fedora a couple of days ago. 
I haven't seen a new version...
But after more tests, I noticed the problem is with Ardour 2.8.2 from
F10-repos. Ardour seems to works great, but there is this a char issue
with jack connections. So I reinstalled 2.7, and it's ok... Anybody
planed to package 2.8 for CCRMA? 
> > Kernel: The only problem I had with CCRMA was to get rt-kernel working
> > on my machine. 2.6.27 didn't, but 2.6.29-? (ccrma testing repo) was ok
> > but now: 
> > 2.6.29-6-rt: system hangs, until I press a key / move mouse
> > 2.6.29-2-rt: sometimes hangs on boot, I have to press a key, then give
> > me a kernel problem. but then seems to work...
> > Is there any kernel known as stable?
> >     
> Could you give us the complete names of the kernels? When you boot into
> one "uname -r" should give you the kernel version. You say "2.6.29" was
> ok, which version was it?
> Both kernels should be "stable", but how stable depends a bit on your
> particular hardware combination. The strange thing is that once you find
> a kernel that works for you it should keep working fine. Did you change
> any hardware in your machine? When did it start misbehaving? If you
> remember when it happened an "rpm -q -a --last" should point you to
> package changes that happened at that time...
Ok, I'll be more precise: & 2: system hangs on startup AND in use/ have to press a key to go on. I get xruns without apparent reason. seems to work, but sometimes hangs on startup (I had same problem with earlier version of Ubuntu and U-Studio (gutsy-hardy).It's ok now with jaunty.) same... And I have a strange message just after startup about "kernel failure". I can't reproduce because it's not appearing any more. Maybe I said "never again" or something (???)
2.6.29-0.1.rt3.1: works well! (???)
So I can say that 29.6 doesn't work at all, and others work, some have problems. I didn't change nothing on my computer. Problems appeared after kernel updates, it seems it's getting worth on each update...
I'll keep using older  rt-kernels...
=>Juan: don't thing it has to do with graphic or gnome... I never installed drivers for my nvidia (no need, and I heard it's recommended when using rt)... I works well

> -- Fernando

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