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jackd realtime configuration

Setting proper limits

Depends on your distribution, edit one of following files:

/etc/security/limits.conf

or

/etc/security/limits.d/audio.conf

to make sure that they include:

@audio - rtprio 95
@audio - memlock 1024000
@audio - nice -19 

Value for memlock should be around 80% of your memory. Of course you have to have audio group in your system.

To create it type:

adduser --group audio

Add your user to the audio group:

adduser bluszcz audio

And make sure, that your window manager is using pam. If you are using slim along with Ubuntu, than you have to create manually file:

/etc/pam.d/slim

with following content:

session required pam_limits.so