linux-kernel - Re: 2.6.{28,30} Keyboard not working on oldish machine

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Message-Id: <200906231106.37460.dmitry.torokhov@gmail.com>
Date:	Tue, 23 Jun 2009 11:06:36 -0700
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	"Dr. David Alan Gilbert" <linux@...blig.org>
Cc:	Jiri Kosina <jkosina@...e.cz>, "H. Peter Anvin" <hpa@...or.com>,
	linux-kernel@...r.kernel.org, linux-input@...r.kernel.org
Subject: Re: 2.6.{28,30} Keyboard not working on oldish machine

On Tuesday 23 June 2009 11:58:15 Dr. David Alan Gilbert wrote:
> * Jiri Kosina (jkosina@...e.cz) wrote:
> > On Mon, 22 Jun 2009, Dr. David Alan Gilbert wrote:
> > > > Yes, with i8042.noaux it works; dmesg snippet included below.
> > > > And in reply to hpa, it doesn't have a mouse port.
> > >
> > > I saw you also asked for a dmidecode -t system dmidecode says the
> > > machine has 'No SMBIOS nor DMI entry point'.
> >
> > Hmm, that means that there is no easy way to identify your particular
> > machine (which apparently has somewhat broken AUX i8042 port) in run-time
> > for quirk to be applied. I am afraid you'll need to live with specifying
> > the command-line kernel parameter on this machine.
>
> Yep; I'm OK with the i8042.noaux from my point of view, but it's a
> bit worrying that this used to work fine.  There's obviously been
> a change somewhere since 2.6.18 (and as I remember from the dmesg
> the keyboard and aux ports are being initialised in different orders).
> (Actually I say obviously since 2.6.18 - but the 2.6.18 I tried
> I think I only used the debian version - I should go back and
> see if I can do a vanilla one), but this box has been running
> Linux since the time it was originally bought with loads of distros
> and clean kernels years ago.
>
> While this machine is old, the motherboard was a pretty common one
> at the time.
>

Any chance I could get dmesg with i8042.debug with 2.6.18? There was
quite a large change back then when we got rid of the polling timer
in i8042.

-- 
Dmitry
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