lkml.org 
[lkml]   [2006]   [Jan]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: PROBLEM: PS/2 keyboard does not work with 2.6.15
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.

--
Vojtech Pavlik
SuSE Labs, SuSE CR
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-01-10 16:30    [W:0.105 / U:0.104 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site