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From: Jiri Slaby <jslaby@suse.cz>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: phil@ipom.com, stable@kernel.org, Greg KH <gregkh@suse.de>,
	USB list <linux-usb@vger.kernel.org>,
	Linux kernel mailing list <linux-kernel@vger.kernel.org>
Subject: Re: [34-stable regression] USB delay init quirk causes device events loss
Date: Mon, 13 Sep 2010 16:59:12 +0200	[thread overview]
Message-ID: <4C8E3C40.50808@suse.cz> (raw)
In-Reply-To: <Pine.LNX.4.44L0.1009131045000.1584-100000@iolanthe.rowland.org>

On 09/13/2010 04:48 PM, Alan Stern wrote:
> On Mon, 13 Sep 2010, Jiri Slaby wrote:
>> In other words, what I could do is to add some printks into
>> hub_port_connect_change if that's called at all. If you need some
>> thorough debugging printks, please send me a patch to test instead.
> 
> Hmm.  I'd prefer to explain how it's all supposed to work and let you
> figure out where best to look.  Or try to debug it myself.  Does this
> happen with other sorts of USB devices as well, or just wacom?

With some sort of devices (I cannot reproduce myself). It's unrelated to
wacom -- people with wacom were unable to even start X with this kernel.
If you look at the bugreport, there are several examples:
ID 046d:c517 Logitech, Inc. LX710 Cordless Desktop Laser defunct
Microsoft USB keyboard defunct x Logitech mice OK
046a:0021 Cherry GmbH keyboard defunct
logitech wireless laptop mouse defunct
A$Tech wireless laptop mouse defunct
TypeMatrix USB 2030 (ID : 1e54:2030) defunct

thanks,
-- 
js
suse labs

  reply	other threads:[~2010-09-13 14:59 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-09-13 11:18 [34-stable regression] USB delay init quirk causes device events loss Jiri Slaby
2010-09-13 14:16 ` Alan Stern
2010-09-13 14:23   ` Jiri Slaby
2010-09-13 14:48     ` Alan Stern
2010-09-13 14:59       ` Jiri Slaby [this message]
2010-09-13 15:37         ` Alan Stern
2010-09-13 15:56           ` Greg KH
2010-09-13 16:02             ` Phil Dibowitz
2010-09-13 16:24               ` Alan Stern
2010-09-13 17:03                 ` Jiri Slaby
2010-09-13 17:06                   ` Greg KH
2010-09-14 12:03           ` Oliver Neukum
2010-09-14 14:03             ` Alan Stern

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