linux-kernel - Re: [INPUT] i8042 not detecting AUX port

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Message-Id: <JIKCJG$9CB259B32F4FFD5A69DD821D2C467660@laposte.net>
Date:	Thu, 24 May 2007 22:50:04 +0200
From:	Emmanuel Fusté <emmanuel.fuste@...oste.net>
To:	"dtor" <dtor@...ightbb.com>
Cc:	"linux-kernel" <linux-kernel@...r.kernel.org>
Subject: Re: [INPUT] i8042 not detecting AUX port

> On Wednesday 23 May 2007 16:41, Emmanuel Fusté wrote:
> > Hi,
> > > Hi,
> > > 
> > > On Tuesday 22 May 2007 18:23, Emmanuel Fusté wrote:
> > > > Hello,
> > > > 
> > > > Just to let you know that since I jumped from 2.6.16 to
> > > > 2.6.20.7 and 2.6.21, I need the i8042.noloop option to
get the
> > > > AUX port detected.
> > > > Without this option, the kernel silently omit the AUX
port,
> > > > only the KBD port is detected.
> > > > 
> > > > If Dmitry is interested by a debug log, I will recompile a
> > > > kernel with i8042.debug support.
> > > 
> > > You do not need to recompile anymore, just boot with
> > i8042.debug. 
> > > 
> > Ok loglevel=8 and i8042.debug do the trick.
> > 
> 
> Hmm, it looks like your box does not want to generate
interrupts for
> loop command. Oh, well... I think the best solution would be to 
> automatically set i8042_noloop on your box. Can I please get
dmidecode
> output?
> 
I attached the dmidecode output.
DMI is somewhat broken with this old BIOS.
I checked the config space of the 82371SB(PII3). It seems that
my bios did not get the XCBS register right(4Eh): IRQ12/M
Mouse  function Enable is set to 0.
This bios is full of bugs, a real plague. Will try to quirk
this register at boot time.

Best regards,
Emmanuel.


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View attachment "dmidecode.txt" of type "text/plain" (9491 bytes)