From: Stefan Winter <mail@stefan-winter.de>
To: "Brown, Len" <len.brown@intel.com>, <linux-kernel@vger.kernel.org>
Subject: Re: PROBLEM: no keyboard and mouse on 2.6.0-test4 (notebook)
Date: Tue, 23 Sep 2003 19:13:12 +0200
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Hi,

I investigated the below issue with keyboard and mouse not working under 
2.6.0-testX further (still present in test5). For my box, it broke with the 
patch from 2.5.32 to 2.5.33, specifically with the patch to file atkbd.c. 
This change belongs to the Changelog entry

"	More careful probe and init in atkbd.c and psmouse.c
	to avoid triggering bugs in certain keyboards."

from vojtech at suse dot cz (cc?ed). I would fiddle with the patch to figure 
out what exactly broke the keyboard support, but I don?t have a clue where to 
start. Some advice in private mail would sure be of great help.


Am Montag, 1. September 2003 04:45 schrieb Brown, Len:
> Stefan,
> Did earlier versions of 2.6 (or 2.5) work?
> Does booting 2.6.0-test4 with acpi=off make any difference?
>
> Curious that vanilla 2.4.x has an issue with kbd interrupts on this box,
> but SuSE 8.2 does not.  Apparently SuSE 8.2 has a fix or workaround for
> this box that isn't in the baseline -- anybody know what it is?
>
> Thanks,
> -Len
>
> > [7.7.] Other information that might be relevant to the problem
> >        (please look in /proc and include all information that you
> >        think to be relevant):
> > sunshine:/proc # cat interrupts
> >            CPU0
> >   0:    4574746          XT-PIC  timer
> >   1:         14          XT-PIC  i8042
> >   2:          0          XT-PIC  cascade
> >   5:          2          XT-PIC  ohci1394, VIA8233
> >   9:          5          XT-PIC  acpi
> >  10:       4029          XT-PIC  eth0
> >  11:          0          XT-PIC  ehci_hcd
> >  12:         89          XT-PIC  i8042
> >  14:       5523          XT-PIC  ide0
> >  15:         45          XT-PIC  ide1
> > NMI:          0
> > LOC:    4570927
> > ERR:      62338
> > MIS:          0
> >
> > [X.] Other notes, patches, fixes, workarounds:
> > the interrupt count on INT1,CPU0 (see /proc/interrupts above) does not
> > increase after key pressures. It looks like the interrupt
> > from the keyboard
> > isn?t caught. There is an issue on 2.4.x kernels that may
> > relate to that
> > problem: after running the kernel and restarting it with
> > "init 6", the BIOS
> > warns about "No interrupts from timer 0" and the BIOS
> > password entry
> > field doesn?t catch keypresses any more [this is only an
> > issue with the
> > vanilla kernel - SuSE 8.2?s patched kernel is fine]. An "init 0" and
> > re-poweron solves that issue in 2.4.x kernels. Maybe the 2.6. kernel
> > encounters that phenomenon earlier.

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