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Troubleshooting
Maciej Bliziński edited this page Dec 27, 2021
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By default, Jack starts up in realtime mode. If the user starting jack is not allowed to start realtime processes, the following error might occur:
cannot use real-time scheduling (FIFO at priority 10) [for thread -1210562896, from thread -1210562896] (1: Operation not permitted)
In this case, you might want to set up your limits.conf
to allow the audio group access to realtime priorities.
If you get the following error:
cannot use real-time scheduling (FIFO at priority -4) [for thread -1238631568, from thread -1238631568] (22: Invalid argument)
.. try setting the 'interface' parameter correctly. (see also [http://linuxmusicians.com/viewtopic.php?f=4&t=2588&view=unread#p12107])