[Bug 1490347] Re: [Regresision] 15:10 - Cannot pair with devices using PIN codes

[TJ]

In reply to Simon Fels (sorry for the long delay - I put the keyboards
aside to focus on other things).

The "Apple Wireless Keyboard" are model A1016 105-key, including a
numeric keypad.

Issue still affects 16.04.

>From 16.04 attaching a bluetoothd debug log whilst trying to pair with
the A1016. It reflects using

tj at T300CHI:~$ bluetoothctl
[NEW] Controller 34:02:86:FC:AD:59 T300CHI [default]
[NEW] Device 00:0A:95:44:37:11 Apple Wireless Keyboard
[NEW] Device 1C:B7:2C:04:C7:FE ASUS T300CHI DOCKING
[bluetooth]# agent on
Agent registered
[bluetooth]# default-agent
Default agent request successful
[bluetooth]# scan on
Discovery started
[CHG] Controller 34:02:86:FC:AD:59 Discovering: yes
[NEW] Device 00:1F:3A:E0:0A:AF hephaestion.lan.iam.tj
[CHG] Device 00:0A:95:44:37:11 LegacyPairing: yes
[CHG] Device 00:0A:95:44:37:11 RSSI: -43
[bluetooth]# pair 00:0A:95:44:37:11
Attempting to pair with 00:0A:95:44:37:11
[agent] PIN code: 412054
Failed to pair: org.bluez.Error.ConnectionAttemptFailed
[CHG] Device 00:1F:3A:E0:0A:AF RSSI: -66

Notice that the "[agent] PIN code: 412054" message doesn't appear until
I press the A1016 keyboard's Enter key once. I then type the prompted
PIN followed by Enter on the A1016 keyboard.

Sometimes I get three prompts to enter PIN codes (each PIN different)
before it fails.

** Attachment added: "bluetoothd debug log trying to pair A1016"
   https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1490347/+attachment/4645819/+files/bluetoothd-debug-A1016-pair-attempt.log

** Summary changed:

- [Regresision] 15:10 - Cannot pair with devices using PIN codes
+ [Regresision] 16:04 + 15:10 - Cannot pair with devices using (Legacy) PIN codes

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https://bugs.launchpad.net/bugs/1490347

Title:
  [Regresision] 16:04 + 15:10 - Cannot pair with devices using (Legacy)
  PIN codes

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