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, 2 Sep 2003 20:25:32 +0200
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> Did earlier versions of 2.6 (or 2.5) work?

I have now localized the version that broke keyboard support for me. It worked 
in 2.5.24 and broke in 2.5.25. After a quick look at the ChangeLog for 2.5.25 
it seems that <vojtech@twilight.ucw.cz> has commited quite some stuff that 
relates to keyboard.

Greetings,

Stefan Winter

>
> 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 keyboard 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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