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From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: Vojtech Pavlik <vojtech@suse.cz>
Cc: Alan Stern <stern@rowland.harvard.edu>,
	Martin Bretschneider <mailing-lists-mmv@bretschneidernet.de>,
	linux-kernel@vger.kernel.org,
	Jan Engelhardt <jengelh@linux01.gwdg.de>,
	linux-usb-devel@lists.sourceforge.net, Greg KH <gregkh@suse.de>,
	Leonid <nouser@lpetrov.net>
Subject: Re: PROBLEM: PS/2 keyboard does not work with 2.6.15
Date: Tue, 10 Jan 2006 10:37:31 -0500	[thread overview]
Message-ID: <d120d5000601100737r7b1e12edy6d4eedc4b12960fc@mail.gmail.com> (raw)
In-Reply-To: <20060110152807.GB22371@suse.cz>

On 1/10/06, Vojtech Pavlik <vojtech@suse.cz> wrote:
> On Tue, Jan 10, 2006 at 10:12:21AM -0500, Alan Stern wrote:
> > On Tue, 10 Jan 2006, Vojtech Pavlik wrote:
> >
> > > It's usually that the BIOS does an incomplete emulation of the i8042
> > > chip, while still getting in the way to the real i8042. Usually GRUB and
> > > DOS don't care about sending any commands to the i8042, and so they
> > > work. The Linux i8042.c driver needs to use them to enable the PS/2
> > > mouse port and do other probing, and if the commans are not working, it
> > > just bails out.
> > >
> > > The question of course is why the handoff code doesn't work on that
> > > platform.
> >
> > It turned out that a BIOS upgrade fixed the problem, but this doesn't
> > answer your question.
> >
> > The problem wasn't an incomplete emulation of the i8042, because when the
> > USB handoff code was commented out the PS/2 keyboard worked okay.  This
> > means the handoff, when enabled, wasn't being done correctly.  That could
> > be the fault of the USB drivers or the BIOS (or both).  We have no way to
> > tell which, because the users have all switched to the newer BIOS.
>
> As usual with BIOS interaction problems.
>

We'll just have to wait for another report. "Sluggish typing" report
looks promising.

--
Dmitry

  reply	other threads:[~2006-01-10 15:37 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-01-05 13:58 PROBLEM: PS/2 keyboard does not work with 2.6.15 Martin Bretschneider
2006-01-05 14:37 ` Dmitry Torokhov
2006-01-06  7:21 ` Jan Engelhardt
2006-01-06 16:29 ` Martin Bretschneider
2006-01-06 19:00   ` Jesper Juhl
2006-01-08 21:23 ` Martin Bretschneider
2006-01-08 22:19   ` Dmitry Torokhov
2006-01-09  9:50     ` Martin Bretschneider
2006-01-09  6:26   ` Dmitry Torokhov
2006-01-09 15:32     ` Alan Stern
2006-01-09 16:50       ` Dmitry Torokhov
2006-01-09 17:23         ` Alan Stern
2006-01-09 17:54           ` Dmitry Torokhov
2006-01-09 20:08             ` Martin Bretschneider
2006-02-04  7:01             ` mahesh
2006-01-10  7:43           ` Vojtech Pavlik
2006-01-10 15:12             ` Alan Stern
2006-01-10 15:28               ` Vojtech Pavlik
2006-01-10 15:37                 ` Dmitry Torokhov [this message]
2006-01-11  0:01                   ` Jan Rekorajski
2006-01-11  0:19                     ` Pete Zaitcev
2006-01-11 15:26                     ` Alan Stern
2006-01-11 16:01                       ` Jan Rekorajski
2006-01-11 19:57                         ` Pete Zaitcev
     [not found]                   ` <161717d50601101019k34a901a8x37fb28187a609490@mail.gmail.com>
     [not found]                     ` <d120d5000601101225h32b44f7eobae654056cf0318c@mail.gmail.com>
     [not found]                       ` <161717d50601101419q373cde76y6b374f1ae289ca22@mail.gmail.com>
     [not found]                         ` <d120d5000601101425g576f8fd3kc9de80a4b320c3bf@mail.gmail.com>
2006-01-11  2:45                           ` Dave Neuer
2006-01-09 18:36       ` Martin Bretschneider
2006-01-09 19:09         ` Alan Stern
2006-01-09  6:10 Leonid
2006-01-14 14:20 Walt H
2006-01-14 17:09 ` Alan Stern
2006-01-14 19:27   ` Walt H
2006-01-15 15:45     ` Alan Stern

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