Writing a udev rule to ignore device by ModemManager worked for me: /etc/udev/rules.d/55-bluetooth-drone-NoModem.rules KERNEL=="rfcomm*", ATTR{address}=="xx:d3:xx:00:xx:xx", ENV{ID_MM_DEVICE_IGNORE}="1"
And reloading rules: sudo udevadm control --reload-rules So I connect to device as root sudo rfcomm connect hic0 XX:D3:XX:00:XX:XX and then I am able to use it as regular user from dialout group -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1014992 Title: Ubuntu 12.04, i386, cannot use rfcomm as regular user. Permission denied. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1014992/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs