linux-kernel - Re: Regression: ps2mouse not working in 2.6.34

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Date:	Mon, 28 Jun 2010 16:57:59 -0400
From:	Mark Lord <kernel@...savvy.com>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
CC:	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: Regression: ps2mouse not working in 2.6.34

On 28/06/10 01:31 PM, Dmitry Torokhov wrote:
> On Monday, June 28, 2010 10:18:35 am Mark Lord wrote:
>> On 28/06/10 12:33 PM, Dmitry Torokhov wrote:
>>> On Mon, Jun 28, 2010 at 12:04:46PM -0400, Mark Lord wrote:
>>>> Okay, who broke it, and how do I re-enable it?
>>>>
>>>> The PS/2 mice on my systems here don't do anything with 2.6.34.
>>>> One system complains that I need to boot with i8042.nopnp to enable it,
>>>> which I also tried, but still nogo.  Same behaviour with or without
>>>> /dev/psaux enabled.  64-bit kernel.
>>>>
>>>> The other system, running older userspace, hangs at the X-server startup
>>>> because it cannot find the mouse.  No i8042 warnings.   32-bit kernel.
>>>>
>>>> Both systems working fine with older kernels.
>>>> Google finds lots of other people discovering the same problem.
>>>>
>>>> What gives?
>>>
>>> Well, lest start small: did it work ifor you with 2.6.33? Does kernel
>>> discover AUX serio port (dmesg)? What about the mouse itself? Is it
>>> absent or is it not reporting events?
>>
>> ..
>>
>> I started by crawling into the wire nest under the table.  :)
>>
>> After a certain amount of experimentation, it appears that the newer
>> kernel is not compatible with the USB-to-PS2 dongle on the end of the
>> mouse. I found a different USB-to-PS2 dongle which does work, though.
>>
>> Very weird.  I can mail you the other dongle if are really interested
>> in figuring out what broke and fixing it.
>
> Hmm, let me dig out one of my dongles first and see if it is broken too... If
> not I might be interested in getting yours but no promises - time is tight ;(
..

I'm beginning to suspect the dongle I was using simply went bad
at the same time I upgraded kernels.  It no longer works with older stuff either.

So.. unfortunate timing of a hardware failure with kernel upgrade.

Nothing to see here.

Thanks Dmitry!

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