Are there still known issues with the Bluetooth driver on the Raspberry Pi 3? It was mentioned in the Pi 3 edition of MagPi that the driver wasn't yet finished at that time.
We have just spent quite a few hours trying to pair and connect a keyboard and mouse (Tecknet X366 and BC309 respectively) to our RPi 3. These devices work fine on our Chromebook. I was also able to get them working on my desktop PC, which runs Kubuntu, using a Cambridge Silicon Radio, Ltd Bluetooth dongle which I've had for donkey's years. We cannot maintain a connection on the Pi 3 using the integrated Bluetooth.
We initially tried using Blueman to set things up and this worked OK for the mouse, but wouldn't pair the keyboard. We've read somewhere that there are issues with Blueman, so we weren't too concerned. We then tried with bluetoothctl and were able to pair, trust and connect both devices, but not both at the same time!
What we have found is that we can make it all work extremely reliably if we plug the aforesaid ancient dongle into the RPi 3 and make it the default device, but the system is unusable if we try to use the integrated device. We've installed pi-bluetooth and all the associated packages, (AFAICT), so we can only assume that there is some limitation in the driver.
Any comments on this?