[Jack-Devel] Jack won't start on boot

[Ralf Mardorf]

On Sun, 9 Jul 2017 19:27:16 +0300, alex wrote:
>On 07/09/2017 06:14 PM, Ralf Mardorf wrote:
>>    uname -r  
>3.8.13.30
>>    /etc/init.d/rtirq status  
>-bash: /etc/init.d/rtirq: No such file or directory
>So the issue is that I don't have a real-time kernel?

No. Even the so called Ubuntu lowlatency kernel is not patched with the
real-time patch. Even a vanilla kernel comes with some kind of
real-time capability. How good it is depends on the configuration.

First of all add "threadirqs" to your bootloader's options and then run

  sudo apt-get update
  sudo apt-get install rtirq-init

after that edit "RTIRQ_NAME_LIST=" of the file /etc/default/rtirq .

I don't know what to add to that file's list for your architecture. For
example "rtc" doesn't make sense on most modern machines, but I don't
have a clue what makes sense for your architecture.

However, maybe don't edit anything or better just add

  usb

at first of that list and reboot and after
that run

  /etc/init.d/rtirq status

and post the output to the mailing list.

This becomes a little bit OT for this mailing list. you might get
better help on https://lists.linuxaudio.org/listinfo/linux-audio-user .

Compiling and building the packages for a rt patched kernel is easy to
do for Ubuntu, but you might not need a rt patched kernel at all.

Regards,
Ralf


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Votes: 84                         Updated: Sun Jul  9 19:09:48 CEST 2017