I believe this most likely is a race, when two paired devices try to reestablish the connection at the same time:
When entering the car, but the HMI and the phone indicate they try connecting and it usually fails. Still after some minutes it happens, that only one side tries to initiate the connection (didn't check who actually does, car or phone) and then the connection usually gets established. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to bluez in Ubuntu. https://bugs.launchpad.net/bugs/1435040 Title: Ubuntu Phone (BQ E4.5) does not connect to car-bluetooth Status in Canonical System Image: Confirmed Status in bluez package in Ubuntu: Confirmed Status in ubuntu-system-settings package in Ubuntu: Incomplete Bug description: With my FORD Focus Car, pairing does not work. The bluetooth system in the car searches for devices and shows "Aquaris E4.5 Ubuntu Edition" and then prompts me to connect with a 4-digit pin code, but the Ubuntu phone doesn't react at all and after a while the car system says that it failed to connect. image: 20150310-3201c0a KRILIN01A-S15A_BQ_L100EN_2020_150312 OS Build 20 To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1435040/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp