fresh install - Jack and Guitarix woes...

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RFlagg727
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Joined: Mon Feb 01, 2021 4:39 pm

fresh install - Jack and Guitarix woes...

Post by RFlagg727 »

Hello all, I have a fresh install of Ubuntu 20.04 (initial install of 16.04 LTS upgraded to 18.04 and then to 20.04) installed Jack as well as Guitarix. I'm getting an error on Guitarix startup referencing mlockall. I've searched the forum as well as some googling and I've added my login to the audio group, restarted twice and the error persists.

FWIW Guitarix does work, but there's a delay.

Thanks in advance for any assistance...
Jack_error.jpg
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merlyn
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Re: fresh install - Jack and Guitarix woes...

Post by merlyn »

It's a simple fix. There's a file you have to edit to set the limits. It varies from distro to distro but could be /etc/security/limits.conf or you create /etc/security/limits.d/audio.conf with

Code: Select all

@audio   -  rtprio     95
@audio   -  memlock    unlimited
There's more info here :

https://jackaudio.org/faq/linux_rt_config.html
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