Re: [LAD] jackd not using jackdrc...

2018-08-03 Thread Ralf Mardorf
PS:

On Fri, 3 Aug 2018 10:46:02 +0200, Ralf Mardorf wrote:
>Even a clueless Arch Linux user could _not_ come in the position to
>wonder, if a jack package might be missing, since jack1, as well as
>jack2 are each provided by a single package and no virtual package is
>required either.

There's one exception were an Arch jack package is split. Jack2 is
split to jack2 and jack2-dbus. 

>IIRC in the past there indeed were symlink issues, since the
>Debian and/or Ubuntu maintainers didn't split the packages correctly

...or at least they didn't link correctly.
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Re: [LAD] jackd not using jackdrc...

2018-08-03 Thread Ralf Mardorf
On Fri, 3 Aug 2018 09:49:15 +0200, Fokke de Jong wrote:
>google told me someone with the same problem solved it by installing
>either libjack-jackd2-dev or libjack-dev. in installed libjack-dev,
>but it didn’t help so i removed it again.

The '/usr/lib/x86_64-linux-gnu/libjack*so' symlinks
against '/usr/lib/x86_64-linux-gnu/libjack*so*', as well as the header
files provided by
https://packages.ubuntu.com/artful/amd64/libjack-jackd2-dev/filelist
(jack2) are required to build apps, they are not required at runtime.

The additional *.a files provided by
https://packages.ubuntu.com/artful/amd64/libjack-dev/filelist (jack1)
are also not required at runtime.

Without the 'dev'elopment packages you can't build apps that should use
jack. Once you build such apps, you could remove those packages.

That Debian and Ubuntu split jack packages
https://tracker.debian.org/pkg/jackd2
https://tracker.debian.org/pkg/jack-audio-connection-kit
and that to workaround the jack1/jack2 'issue' the virtual 'jack'
package is required, not necessarily could be considered a
'user-friendly' policy and package management. Arch Linux has got a
different policy and another package management. Even a clueless Arch
Linux user could _not_ come in the position to wonder, if a jack
package might be missing, since jack1, as well as jack2 are each
provided by a single package and no virtual package is required either.

IIRC in the past there indeed were symlink issues, since the
Debian and/or Ubuntu maintainers didn't split the packages correctly.
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Re: [LAD] jackd not using jackdrc...

2018-08-03 Thread Fokke de Jong
Hi Joel,

I’m afraid I’m still not entirely sure what made it work in the end, which does 
kind of worry me in case i run into this again.
To recap: my system is ubuntu 17.10 minimal, clean install.
the only extra packages I installed are sshd, alsa, and jackd1. (if i remember 
correcly, not sitting behind my linix machine right now).

And a realtime kernel 4.13.x I believe. Not much more. 
The last problem i had was this error:

connect(2) call to /dev/shm/jack-0/default/jack_0 failed (err=No such file or 
directory)

google told me someone with the same problem solved it by installing either 
libjack-jackd2-dev or libjack-dev.
in installed libjack-dev, but it didn’t help so i removed it again. 

A few reboots later i did not get the error anymore.
So i’m still kind of puzzled why it is working now, or even why i got the error 
in the first place..

cheers,
Fokke






> On Aug 3, 2018, at 00:01 , Joel Roth  wrote:
> 
> On Thu, Aug 02, 2018 at 09:44:00PM +0200, Fokke de Jong wrote:
>> Hi all,
>> 
>> after a lot of voodoo, black magic (and some reboots).
>> Its seems jack is not complaining anymore, and everything is working again!
> 
> I'm glad you got jackd going. Even a sentence explaining the solution
> you found is a nice way to give back to the community that
> assists you. In general, as you learn more about linux,
> you will find that you rarely have to reboot your
> system when making changes. I believe it's now 
> possible to install a new kernel on a running system. 
> Installing/removing drivers (e.g. kernel modules) is also
> something possible without rebooting. 
> 
> Unlike, for example windows, that has to reboot after every
> patchset when reinstalling from instal media. 
> 
> I do find that X or X apps can hang from time to time, so
> setting up X to terminate on Ctrl-Alt-Backspace so you can 
> restart X is quite helpful. I use a terminal multiplexer,
> which comes back with all my terminals, so that part is
> pretty convenient.
> 
>> Thanks everyone for helping!
> 
> Good luck with JACK. I think most users find problems are
> rare once you get it set up properly due to the
> well-though-out design excellent work by the maintainers. 
> 
>> cheers,
>> fokke
> 
> -- 
> Joel Roth
> 
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