From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752603Ab3AVMnF (ORCPT ); Tue, 22 Jan 2013 07:43:05 -0500 Received: from cantor2.suse.de ([195.135.220.15]:47975 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750713Ab3AVMm7 (ORCPT ); Tue, 22 Jan 2013 07:42:59 -0500 Date: Tue, 22 Jan 2013 13:42:54 +0100 (CET) From: Jiri Kosina To: Brad Tilley Cc: Dmitry Torokhov , linux-kernel@vger.kernel.org, linux-input@vger.kernel.org Subject: Re: PROBLEM: 3.8.0-rc4 keyboard failure at boot In-Reply-To: <20130122121947.GB27072@16s.us> Message-ID: References: <20130121213604.GA31225@16s.us> <20130122001346.GD16638@core.coreip.homeip.net> <20130122121947.GB27072@16s.us> User-Agent: Alpine 2.00 (LNX 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 22 Jan 2013, Brad Tilley wrote: > > > > Here is info from a computer where the keyboard works occasionally at > > > > boot (about 50% of the time). Users reboot until the keyboard works. > > > > > > > > > > Hmm, this is a USB keyboard so let's CC Jiri in addition to > > > linux-input... > > > > Thanks for the report. > > > > First question before we start any further analysis -- what is the latest > > known-good version of the kernel, where this problem didn't happen on this > > particular computer? > > Kernels 3.7.3 and 3.7.4 do not have this issue. It began with the 3.8 rcs. Could you please provide dmesg output from both working and non-working case? Also /proc/bus/input/devices content would be interesting (in case you are able to log remotely into the machine). Does replugging the keyboard fix the problem with 50% probability? Are other USB devices (such as mice) affected by this as well? Thanks, -- Jiri Kosina SUSE Labs