Nicolas, this bug was reported over 7 years ago against an Ubuntu version that will reach end of life in a few months. I suggest to keep your issue alive that it should be reported as a new bug.
** Tags added: trusty -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to bluez in Ubuntu. https://bugs.launchpad.net/bugs/1642112 Title: Can’t connect to the second BT device successfully Status in bluez package in Ubuntu: New Bug description: OS: 14.04 bluez version: 4.x After first bt device(eg. mouse) connected, try to connect second device(eg. keyboard), found it has no function when connected, and sometimes it fails to connect. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1642112/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp