[Jack-Devel] Jack_Capture not starting anymore after having Jackd running as systemd service

jack at microfx.de jack at microfx.de
Tue Dec 11 01:06:54 CET 2018

But I was running jack before as user pi with my scripts and with systemd also as user pi … ah maybe different group? I just made the Group=pi as well… is there a special group maybe?

> On 11. Dec 2018, at 01:01, Kjetil Matheussen <k.s.matheussen at gmail.com> wrote:
> On Tue, Dec 11, 2018 at 12:52 AM jack at microfx.de <jack at microfx.de> wrote:
>> Alright! I added everything… but I have some routing problems right now so I cannot install the osc package. Will try tomorrow.
>> I just tested the whole setup … and I get crackling when running jackd as mentioned above with systemd …does it run with another priority maybe? When using my old scripts to start jack2 everything is normal.
> You might not have the right privilege to run jackd as a normal user
> with SCHED_FIFO or SCHED_RR priority (I.e realtime priority).
> Try to run jackd manually in the shell as a normal user and see if it
> shows a warning message about this.
> If you do get a warning, there's probably some info at jackaudio.org
> on how to enable realtime privileges for normal users, or you can
> google it. I don't remember exactly how right now. :-)

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