Не могу найти либы JACK'a

-dev пакеты-то установлены?

libjack-jackd2-dev установлен. Где искать либы не знаю

dpkg -L libjack-jackd2-dev?

/. /usr /usr/include /usr/include/jack /usr/include/jack/midiport.h /usr/include/jack/jslist.h /usr/include/jack/weakjack.h /usr/include/jack/systemdeps.h /usr/include/jack/net.h /usr/include/jack/ringbuffer.h /usr/include/jack/jack.h /usr/include/jack/statistics.h /usr/include/jack/session.h /usr/include/jack/transport.h /usr/include/jack/control.h /usr/include/jack/thread.h /usr/include/jack/intclient.h /usr/include/jack/weakmacros.h /usr/include/jack/types.h /usr/lib /usr/lib/x86_64-linux-gnu /usr/lib/x86_64-linux-gnu/pkgconfig /usr/lib/x86_64-linux-gnu/pkgconfig/jack.pc /usr/share /usr/share/doc /usr/share/doc/libjack-jackd2-dev /usr/share/doc/libjack-jackd2-dev/copyright /usr/lib/x86_64-linux-gnu/libjackserver.so /usr/lib/x86_64-linux-gnu/libjacknet.so /usr/lib/x86_64-linux-gnu/libjack.so /usr/share/doc/libjack-jackd2-dev/README.gz /usr/share/doc/libjack-jackd2-dev/TODO /usr/share/doc/libjack-jackd2-dev/changelog.Debian.gz

.a файлов в списке нет

Установил libjack-dev. '.a' файлы появились, но сервер jackd теперь не запускается:

14:23:30.242 Patchbay deactivated. 14:23:30.244 Statistics reset. 14:23:30.245 ALSA connection change. 14:23:30.248 D-BUS: Service not available (org.jackaudio.service aka jackdbus). 14:23:30.253 ALSA connection graph change. 14:23:31.413 JACK is starting... 14:23:31.413 /usr/bin/jackd -dalsa -dhw:0 -r44100 -p1024 -n2 14:23:31.476 JACK was started with PID=6897. 14:23:31.477 JACK was stopped with exit status=255. jackd 0.122.0 Copyright 2001-2009 Paul Davis, Stephane Letz, Jack O'Quinn, Torben Hohn and others. jackd comes with ABSOLUTELY NO WARRANTY This is free software, and you are welcome to redistribute it under certain conditions; see the file COPYING for details JACK is running in realtime mode, but you are not allowed to use realtime scheduling. Please check your /etc/security/limits.conf for the following line and correct/add it if necessary: @audio - rtprio 99 After applying these changes, please re-login in order for them to take effect. You don't appear to have a sane system configuration. It is very likely that you encounter xruns. Please apply all the above mentioned changes and start jack again! 14:23:33.544 Could not connect to JACK server as client. - Overall operation failed. - Unable to connect to server. Please check the messages window for more info.

осиль лоркод, читать же невозможно

JACK is running in realtime mode, but you are not allowed to use realtime scheduling.

Что из этого не ясно?