i've same problem with Ubuntu 18.04 which i updated to ubuntustudio using official repositories.
With Ubuntu 18.04 comes Qjackctl 0.4.5. I tried the AppImage 0.5.5 but had the same behavior: The Qjackctl application displays in message window that jack is started but no jack applications can connect to the jack server.
When i start the daemon manually "jackd ..." it works.
So i installed the Qjackctl 0.4.2 version as suggested which works fine.
Hello,
i've same problem with Ubuntu 18.04 which i updated to ubuntustudio using official repositories.
With Ubuntu 18.04 comes Qjackctl 0.4.5. I tried the AppImage 0.5.5 but had the same behavior: The Qjackctl application displays in message window that jack is started but no jack applications can connect to the jack server.
When i start the daemon manually "jackd ..." it works.
So i installed the Qjackctl 0.4.2 version as suggested which works fine.
BR,