linux-kernel - Re: [Bug #13837] Input : regression

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Date:	Sat, 8 Aug 2009 02:41:47 +0200 (CEST)
From:	Jiri Kosina <jkosina@...e.cz>
To:	Dave Young <hidave.darkstar@...il.com>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	linux-input@...r.kernel.org
Subject: Re: [Bug #13837] Input : regression - touchpad not detected


[ adding Dmitry and linux-input to CC ]

On Mon, 27 Jul 2009, Dave Young wrote:

> On Mon, Jul 27, 2009 at 4:28 AM, Rafael J. Wysocki<rjw@...k.pl> wrote:
> > This message has been generated automatically as a part of a report
> > of recent regressions.
> >
> > The following bug entry is on the current list of known regressions
> > from 2.6.30.  Please verify if it still should be listed and let me know
> > (either way).
> 
> Now I'm not sure if it's a regression, because it happens not every
> boot. Maybe I just noticed it after 2.6.30
> 
> jiri, I found the place via extra printk messages added to the i8042.c
> 
> in function i8042_check_aux(), when touchpad detecting fail, it fall
> into following error path:
> 
>  if (wait_for_completion_timeout(&i8042_aux_irq_delivered,
>                                         msecs_to_jiffies(250)) == 0) { [snip] }
> 
> so maybe the timeout value need to be increased? I try redo the
> i8042_setup_aux after it fails, it fixes the problem indeed, which one
> is the proper fix do you think? If it's the right fix I can post the
> patch.
> 
> >
> >
> > Bug-Entry       : http://bugzilla.kernel.org/show_bug.cgi?id=13837
> > Subject         : Input : regression - touchpad not detected
> > Submitter       : Dave Young <hidave.darkstar@...il.com>
> > Date            : 2009-07-17 07:13 (10 days old)
> > References      : http://marc.info/?l=linux-kernel&m=124780763701571&w=4
> >
> >
> >
> 
> 
> 
> -- 
> Regards
> dave
> 

-- 
Jiri Kosina
SUSE Labs