As suggested in #2, I reported a bug upstream: https://gitlab.gnome.org/GNOME/gnome-control-center/-/issues/1324
I corrected the screenshot. This ticket may be now closed. ** Bug watch added: gitlab.gnome.org/GNOME/gnome-control-center/-/issues #1324 https://gitlab.gnome.org/GNOME/gnome-control-center/-/issues/1324 -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/1923602 Title: Sound "Output" level shows input level To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1923602/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs