I have no issues connecting my MIDI hardware to any software and therefore cannot reproduce.
Please note that development of this application is not done specifically for Ubuntu anymore and has become an upstream project as Studio Controls (https://github.com/ovenwerks/studio-controls). Because we cannot backport studio-controls into the Ubuntu repositories for Ubuntu 20.04, this is likely a bug, if it even is a bug (bugs are reproducible on all hardware), that is not going to get fixed until there is a new release of Studio Controls which would be backported into the Ubuntu Studio Backports PPA. In your case, it is likely you ran qjackctl at some point (NOT recommended) before running (Ubuntu) Studio Conrols. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1884472 Title: a2jmidid checkbox do not work correctly To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntustudio-controls/+bug/1884472/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs