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

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Message-ID: <20100628165138.GD11670@core.coreip.homeip.net>
Date:	Mon, 28 Jun 2010 09:51:38 -0700
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	Mark Lord <kernel@...savvy.com>
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: Regression: ps2mouse not working in 2.6.34

On Mon, Jun 28, 2010 at 12:34:30PM -0400, Mark Lord wrote:
> 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

When did it start for _you_? I really do not know what kernel and
patches are in Lucid so I'd much more prefer knowing the vanilla kernel
version - I could at least see what has been changed there.

Are you also using USB-to-PS/2 converter?

Probably if you boot with i8042.debug and post full dmesg we coudl see
what is going on there...

> 
> That thread has a suggestion that perhaps
>    "the kernel fails to properly set the power settings for the PS2 port"
> 
> Whatever that means.  :)

I have no idea either.

-- 
Dmitry
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