Thanks Dmitry for spending so much time on this. I had been meaning to create a separate bug for the freezing behaviour, and to try and get some debug output from X to send upstream to Qjackctl. But I had been busy, and it looks like you have found the issue anyway.
Not knowing the X11 API nor QT myself, do you think it would be easy to patch Qjackctl to use the QT5 functions instead (at least in this one place)? I can forward your analysis upstream on a new bug, but we only have a few weeks and they may not respond quickly enough. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1546328 Title: Systray option does not work. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntustudio/+bug/1546328/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs