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

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Date:	Mon, 28 Jun 2010 12:34:30 -0400
From:	Mark Lord <kernel@...savvy.com>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Dmitry Torokhov <dtor@...l.ru>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: Regression: ps2mouse not working in 2.6.34

On 28/06/10 12:04 PM, 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?
..

Mmmm.. the problem started for some people with 2.6.32:

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/587134

That thread has a suggestion that perhaps
    "the kernel fails to properly set the power settings for the PS2 port"

Whatever that means.  :)
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