Ubuntu Studio & Qsampler

[Chris Dawson]

Oh, you know what, I recall that when I upgraded Ubuntu-Studio did not
properly set the permissions of /dev/shm, the shared memory directory.
 Can you verify the permissions of that?  Mine is

cdawson at djavan:~$ ls -l /dev | grep shm
drwxrwxrwt 2 root   root          40 2007-11-12 14:37 shm

Does yours show the same?

You might also run jack under strace, like so:

strace /usr/bin/jackd -R -u -dalsa -dhw:0 -r44100 -p1024 -n2

I think this is where I discovered it could not open the shm directory
and create files there.

Chris

On Nov 12, 2007 5:29 PM, holotone at gmail.com <holotone at gmail.com> wrote:
> holotone at iceman:~$ uname -r
>
> 2.6.22-14-rt
>
> Yup, looks like I'm good to go - Wonder why I can't enable realtime?
>
> Thanks!
>
> ~holotone
>
>
>
> On 11/12/07, Chris Dawson <xrdawson at gmail.com> wrote:
> > If I recall correctly, by default my upgrade did not include the
> > realtime kernel.  I had to apt-get that myself, and then when I
> > rebooted I could run jack with realtime.  See if that works for you.
> > You can see if you have the realtime kernel by doing this:
> >
> > cdawson at djavan:~$ uname -r
> > 2.6.22-14-rt
> >
> > If you don't see rt, then you are not running realtime.
> >
> > Chris
> >
> >
> > On Nov 12, 2007 4:18 PM, holotone at gmail.com <holotone at gmail.com> wrote:
> > > So I bit the bullet this weekend and chose Ubuntu Studio for my Gutsy
> > > upgrade and... Wow! Seriously well done..! I can finally feel confident
> > > using Linux as my primary music production OS..!
> > >
> > > One question, one gripe, and one solution:
> > >
> > > Question: How do I enable realtime in jack? From my understanding,
> Ubuntu
> > > Studio includes the realtime kernel, but whenever I check the realtime
> box
> > > in Jack, it won't start - Any ideas?
> > >
> > > Gripe: I looooove the theme with a few exceptions, the largest of which
> is
> > > being able to see the fine lines between devices and apps in qjackctl's
> > > connections panel. Any suggestions for a fix?
> > >
> > >  Solution: I couldn't for the life of me get Qsampler to work - Kept
> saying
> > > every time I started it that "Server could not be started". A bit of
> > > research turned up that linuxsampler, the sampler that Qsampler is a GUI
> > > front end for, is not included w/ Ubuntu* due to licensing issues. Some
> more
> > > digging around turned up these Ubuntu debs for linuxsampler:
> > > http://ubuntu2.cica.es/ubuntu/ubuntu/pool/universe/l/linuxsampler/
> > >
> > > One quick double click and qsampler is now working flawlessly! Perhaps
> there
> > > should be a note about this somewhere? It took me aages to figure out.
> > >
> > > Thanks again for putting together a great distro!
> > >
> > > --
> > > ~cole
> > > http://holotone.net/
> >
> >
>
>
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