Return-Path: From: Thomas Green To: Szymon Janc CC: "linux-bluetooth@vger.kernel.org" Subject: RE: More keyboard issues Date: Wed, 7 Feb 2018 19:48:13 +0000 Message-ID: References: <5252185.UFqE8F7bMa@ix> Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Sender: linux-bluetooth-owner@vger.kernel.org List-ID: Hi Szymon, Was this helpful to you? Tom -----Original Message----- From: Thomas Green=20 Sent: Thursday, February 01, 2018 10:48 AM To: 'Szymon Janc' Cc: linux-bluetooth@vger.kernel.org Subject: RE: More keyboard issues Szymon, Thanks for the reply, >Hi, > >On Saturday, 27 January 2018 01:20:21 CET Thomas Green wrote: >> Hi all, >> >> I'm testing more keyboards with 5.48 and have found issues with two=20 >> other keyboards. In this case the problem is during pairing. The two k= eyboards >> in question are the SIIG AAZ2448 and the ANKER A7221. The current issu= e >> is that during pairing of these two keyboards we are given a PIN code=20 >> display, so I enter it on the keyboard and nothing happens, and=20 >> eventually the pairing times out. >>=20 >> [bluetooth]# pair 20:73:03:A4:18:4D >> Attempting to pair with 20:73:03:A4:18:4D [CHG] Device=20 >> 20:73:03:A4:18:4D Connected: yes [agent] PIN code: 851841 [Anker=20 >> A7721]# [ 282.174342] WARNING: at net/bluetooth/hci_conn.c:322 >> hci_conn_timeout+0x44/0x198() Failed to pair: >> org.bluez.Error.AuthenticationTimeout >> [Anker A7721]# >>=20 >> This happens about 95% of the time. The other 5% the pairing=20 >> completes and everything works fine. >>=20 >> I could attach btmon output and output from running bluetoothd -d -n,=20 >> but nothing interesting happens from the time the pincode is=20 >> displayed and the timeout occurs. >>=20 >> Where do I begin to look for why the pincode isn't being transmitted=20 >> back from the keyboards? Why is it inconsistent? >>=20 >> As an interesting side note the Apple keyboard that I'm having the=20 >> driver loading trouble uses the same pairing mechanism and it works=20 >> well every time. (and all of these keyboards worked fine in 4.101) > >Get full btmon logs first, ideally from the moment you power on BT adapter= . > >-- >pozdrawiam >Szymon Janc > > The log file is attached to this email.... Tom