Re: [Jack-Devel] Usage feasibility Q

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DateTue, 30 Jan 2018 17:45:53 +0000
From Robert Bielik <[hidden] at dirac dot com>
To"[hidden] at lists dot jackaudio dot org" <[hidden] at lists dot jackaudio dot org>
In-Reply-ToChristian Affolter Re: [Jack-Devel] Usage feasibility Q
Follow-UpChristian Affolter Re: [Jack-Devel] Usage feasibility Q
Follow-UpChris Caudle Re: [Jack-Devel] Usage feasibility Q
> Make sure, that the user which starts jackd is allowed to raise the real
> time priority and memlock address space.
...
> 
> In this case, the user has to be in the @jackuser group to be able to
> raise the priority.

Thanks, I thought it would something like that, Ok I'll have to figure out how to do it on Raspbian.
 
> What error message do you get without sudo? Maybe your user has to be in
> the "audio" group (or similar).

The error is:
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
JackShmReadWritePtr::~JackShmReadWritePtr - Init not done for -1, skipping unlock
aplay: main:788: audio open error: No such file or directory

And the "pi" user seems to be in audio group:
> groups
pi adm dialout cdrom sudo audio video plugdev games users input netdev gpio i2c spi

Running with sudo plays audio just fine.

Regards,
/Robert
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