Same problem since updating my Ubuntu-Studio installation (xfce, de-DE) to ver. 14.10. The Jack systray-menue is still not working in version 15.04 (3.19.0-16-lowlatency x86_64). Since months it just shows an white line at the bottom of jack's icon, when I click on it.
Same problem since updating my Ubuntu-Studio installation (xfce, de-DE) to ver. 14.10. The Jack systray-menue is still not working in version 15.04 (3.19.0- 16-lowlatency x86_64). Since months it just shows an white line at the bottom of jack's icon, when I click on it.