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From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: Mikko Vinni <mmvinni@yahoo.com>
Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org,
	Dmitry Torokhov <dmitry.torokhov@gmail.com>,
	Allen Kay <allen.m.kay@intel.com>,
	Jean Guyader <jean.guyader@eu.citrix.com>,
	Jesse Barnes <jbarnes@virtuousgeek.org>,
	Bjorn Helgaas <bhelgaas@google.com>,
	linux-pci@vger.kernel.org
Subject: Re: [linux-pm] "i8042: Can't reactivate AUX port" after s2ram on 3.4-rc2
Date: Fri, 13 Apr 2012 21:18:21 +0200	[thread overview]
Message-ID: <201204132118.22074.rjw@sisk.pl> (raw)
In-Reply-To: <1334310754.17013.YahooMailNeo@web161804.mail.bf1.yahoo.com>

On Friday, April 13, 2012, Mikko Vinni wrote:
> Bug report:
>     https://bugzilla.kernel.org/show_bug.cgi?id=43099
> 
> Briefly:
> 
> After s2ram the touchpad on a HP dv5 laptop doesn't work anymore.
> 
> dmesg contains this about the touchpad
> Apr 11 18:00:05 koni kernel: i8042: Can't write CTR while closing AUX port
> Apr 11 18:00:08 koni kernel: i8042: Can't reactivate AUX port
> 
> 
> Full log in bugzilla with PCI and i8042 debug turned on.
> 
> Bisected to:
> 
> commit 26f41062f28de65e11d3cf353e52d0be73442be1
> Author: Kay, Allen M <allen.m.kay@intel.com>
> Date:   Thu Jan 26 10:25:53 2012 -0800
> 
>     PCI: check for pci bar restore completion and retry
>     
>     On some OEM systems, pci_restore_state() is called while FLR has not yet
>     completed.  As a result, PCI BAR register restore is not successful.  This fix
>     reads back the restored value and compares it with saved value and re-tries 10
>     times before giving up.

Does reverting the above commit on top of the current Linus' tree fix the
problem for you?

Rafael

  reply	other threads:[~2012-04-13 19:13 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-04-13  9:52 "i8042: Can't reactivate AUX port" after s2ram on 3.4-rc2 Mikko Vinni
2012-04-13 19:18 ` Rafael J. Wysocki [this message]
2012-04-13 19:49   ` [linux-pm] " Mikko Vinni
2012-04-13 20:19     ` Rafael J. Wysocki
2012-04-13 20:47       ` Mikko Vinni
2012-04-14 22:11         ` Rafael J. Wysocki
2012-04-15 10:39           ` Mikko Vinni
2012-04-15 18:30             ` Rafael J. Wysocki
2012-04-15 19:52               ` Rafael J. Wysocki
2012-04-15 20:56                 ` Rafael J. Wysocki
2012-04-16  7:23                   ` Mikko Vinni
2012-04-16 16:17                     ` Rafael J. Wysocki
2012-04-16 18:57                       ` Mikko Vinni
2012-04-16 19:59                         ` Rafael J. Wysocki
2012-04-16 20:35                         ` [PATCH] PCI: Retry BARs restoration for Type 0 headers only Rafael J. Wysocki
2012-04-16 20:35                           ` Linus Torvalds
2012-04-16 21:07                             ` Rafael J. Wysocki
2012-04-16  5:15               ` [linux-pm] "i8042: Can't reactivate AUX port" after s2ram on 3.4-rc2 Mikko Vinni
2012-04-16 16:14                 ` Rafael J. Wysocki
2012-04-15 18:32             ` [PATCH] PCI: Fix regression in pci_restore_state() Rafael J. Wysocki
2012-04-15 18:36               ` Linus Torvalds
2012-04-15 18:47                 ` Rafael J. Wysocki
2012-04-15 18:59                   ` Linus Torvalds
2012-04-15 19:40                     ` Rafael J. Wysocki
2012-04-23 17:03                       ` Bjorn Helgaas
2012-04-23 19:53                         ` Rafael J. Wysocki
2012-04-23 20:07                           ` Don Dutile
2012-04-23 22:33                             ` Bjorn Helgaas
2012-04-24 16:03                               ` Don Dutile
2012-04-24 17:01                                 ` Bjorn Helgaas
2012-04-24 17:35                                   ` Don Dutile
2012-04-27 22:20                                     ` Bjorn Helgaas
2012-04-15  8:12         ` [linux-pm] "i8042: Can't reactivate AUX port" after s2ram on 3.4-rc2 James Courtier-Dutton
2012-04-15 10:47           ` Mikko Vinni

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