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

[jack at microfx.de]

I made some changes and get different behaviour now! I read somewhere to user instead of Group the SupplementaryGroups=audio. Now with user pi and that SupplementaryGroups jack_capture starts when running it manually from /usr/local/bin 

> On 11. Dec 2018, at 12:27, jack at microfx.de wrote:
> 
> It seems like I made a loop with little success but I couldn’t get rid of the crackling. So I reverted everything so I get clean sound. But I am still stuck at launching jack_capture - even as root.
> 
> sudo jack_capture --daemon -c 5 -mb -tm -f flac 
> 
> Cannot read socket fd = 5 err = Success
> CheckRes error
> JackSocketClientChannel read fail
> Cannot open jack_capture client
> JackShmReadWritePtr1::~JackShmReadWritePtr1 - Init not done for -1, skipping unlock
> JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
> JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
> 
> Any further ideas what I could inspect / try?
> 
> 
>> On 11. Dec 2018, at 02:01, jack at microfx.de wrote:
>> 
>> I removed the User / Group part from the .service file and the crackling is gone. Reading this now where it is explained: https://github.com/jackaudio/jackaudio.github.com/wiki/Cgroups … Thank you so much for your time and really helpful tips&tricks - learned a lot! 
>> 
>> This is my first mailing list and I hope I am not too much of a bugger because not following common rules I don’t know yet. 
>> 
>>> On 11. Dec 2018, at 01:48, jack at microfx.de wrote:
>>> 
>>> somehow the file is not being created - but yes, I can see in journalctl those warnings:
>>> 
>>> Dec 11 01:47:07 MICROLABS-P1 jackd[11977]: Jack: JackAlsaDriver::Read warning fBufferSize = 128 nframes = 256
>>> Dec 11 01:47:10 MICROLABS-P1 jackd[11977]: Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 11
>>> Dec 11 01:47:14 MICROLABS-P1 jackd[11977]: Jack: JackAlsaDriver::Read warning fBufferSize = 128 nframes = 256
>>> Dec 11 01:47:20 MICROLABS-P1 jackd[11977]: Jack: JackSocketServerChannel::Execute : fPollTable i = 1 fd = 11
>>> 
>>>> On 11. Dec 2018, at 01:38, Kjetil Matheussen <k.s.matheussen at gmail.com> wrote:
>>>> 
>>>> Maybe you can do this in your service configuration:
>>>> 
>>>> ExecStart=/usr/local/bin/jackd -t 2000 -P 75 -d alsa -d hw:pisound -r
>>>> 48000 -p 128 -n 2 -X seq -s > /tmp/jackd_output.txt
>>>> 
>>>> And then check /tmp/jackd_output.txt if there's anything wrong.
>>>> (by the way, doesn't services log to some file?)
>>>> 
>>>> 
>>>> 
>>>> 
>>>> On Tue, Dec 11, 2018 at 1:20 AM jack at microfx.de <jack at microfx.de> wrote:
>>>>> 
>>>>> Hmm… nope. Sorry for the spam. Still crackling after reboot + daemon-reload. This could have been so easy.
>>>>> 
>>>>>> On 11. Dec 2018, at 01:17, jack at microfx.de wrote:
>>>>>> 
>>>>>> ah.. reboot … heh … that’s it. I just rebooted - but I forgot to systemctl daemon-reload - thanks!
>>>>>> 
>>>>>>> On 11. Dec 2018, at 01:14, Kjetil Matheussen <k.s.matheussen at gmail.com> wrote:
>>>>>>> 
>>>>>>> On Tue, Dec 11, 2018 at 1:12 AM jack at microfx.de <jack at microfx.de> wrote:
>>>>>>>> 
>>>>>>>> I just changed it to Group=audio …same
>>>>>>>> 
>>>>>>>> 
>>>>>>> 
>>>>>>> Maybe this helps:
>>>>>>> 
>>>>>>> * - rtprio 99
>>>>>>> * - memlock unlimited
>>>>>>> 
>>>>>>> You might also have to reboot after changing this file, don't know.
>>>>>> 
>>>>>> _______________________________________________
>>>>>> Jack-Devel mailing list
>>>>>> Jack-Devel at lists.jackaudio.org
>>>>>> http://lists.jackaudio.org/listinfo.cgi/jack-devel-jackaudio.org
>>>>> 
>>> 
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