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QjackCtl 0.5.5 - A Black-Friday'18 Release

Wholly greetings!

QjackCtl 0.5.5 (black-friday'18) is released!

QjackCtl is a(n ageing yet modern not so simple anymore) Qt application to control the JACK sound server, for the Linux Audio infrastructure.


Project page:


Git repos:


  • Old deprecated Qt4 build support is no more.
  • Graph port sort options added as View / Sort menu.
  • System tray options now subject to current desktop environment availability.
  • Also disable Setup / Misc / Other / Save JACK server configuration to (.jackdrc) when JACK D-Bus interface is enabled.
  • Whether to use server synchronous mode option added to Setup / Settings / Parameters (only applied when JACK D-BUS interface is enabled).
  • Disable some Setup / Settings / Advanced parameters when JACK D-Bus interface is enabled and vice-versa.
  • Attempt to power-cycle JACK D-Bus service on demand;
  • Marked as probably useless anyway, old "H/W Monitor" option (-H) is now being ditched from Setup / Settings / Advanced tab.
  • Graph port/connections highlighting.

Donate to


QjackCtl is free, open-source Linux Audio software, distributed under the terms of the GNU General Public License (GPL) version 2 or later.

Enjoy && keep having fun!


Hi Rui,

As usual, I've been updating QjackCtl today to 0.5.5 in LibraZiK-2.

You can find the blog post I wrote (in French) about this update here: and the documentation page (in French too) for this software is still here:

Thanks for QjackCtl !
All the best to you and yours.

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