linux-kernel - Re: 2.6.24: false double-clicks from USB mouse

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Date:	Fri, 7 Dec 2007 13:32:10 -0500
From:	"Dmitry Torokhov" <dmitry.torokhov@...il.com>
To:	"Ray Lee" <ray-lk@...rabbit.org>
Cc:	"Jiri Kosina" <jkosina@...e.cz>, "Mark Lord" <lkml@....ca>,
	rubini@...ion.unipv.it, linux-input@...r.kernel.org,
	"Linux Kernel" <linux-kernel@...r.kernel.org>,
	"Jeff Garzik" <jeff@...zik.org>,
	linux-usb-devel@...ts.sourceforge.net
Subject: Re: 2.6.24: false double-clicks from USB mouse

Hi,

On Dec 7, 2007 12:59 PM, Ray Lee <ray-lk@...rabbit.org> wrote:
> On Dec 2, 2007 2:07 PM, Jiri Kosina <jkosina@...e.cz> wrote:
> > Thanks. To sum up this longish thread:
> >
> > - Mark seems to be able to reproduce the problem quite easily; I was not
> >   successful reproducing this no matter how hard I tried, and I also
> >   didn't receive any similar bugreports from anyone else
> > - we are currently waiting for Mark to provide HID_DEBUG (and preferably
> >   also usbmon) output from the situation where multiple clicks are
> >   being generated incorrectly
>
> Okay, I'm having a problem with 2.6.24-rc4 that I didn't with 2.6.23-rc6.
>
> When the problem hits, my mouse (synaptics touchpad) is randomly
> moving about and clicking things whenever I have my finger on the
> trackpad. This behavior will persists for five to ten minutes (is
> happening now), and seems to be triggered by load (watching online
> videos in flash player, for example -- this matches Mark's experience
> with a make -j4).
>
> I *think* the touchpad is connected via ps2, which looks like it'd
> clear usb of any blame. It's /dev/input/event6 at any rate.
>
> This has been happening about once a day, and seems to start because
> of high CPU usage. ONce the CPU is idle, it still happens though, so
> I'm not sure why it clears up.
>
> Any clues for where I should hunt from here?
>

Can you try replacing drivers/input/ and include/linux/input.h from
2.6.23-rc6 and see if it works or not? That should give us idea if
input locking changes are to blame.

Thanks.

-- 
Dmitry
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