Running GNOME Control Center as root (not a good idea, I know), clearly gets the ModemManager connection to work.
** Attachment added: "GNOME Control Center (root)" https://bugs.launchpad.net/ubuntu/+source/modemmanager/+bug/1946481/+attachment/5534919/+files/Capture%20d%E2%80%99%C3%A9cran%20de%202021-10-21%2015-19-24.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1946481 Title: GNOME Control Center cannot connect to ModemManager with "org.freedesktop.DBus.Error.AccessDenied" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/modemmanager/+bug/1946481/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
