linux-kernel - Re: thinkpad 360Cs keyboard problem

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Date:	Tue, 12 Sep 2006 23:21:24 +0200 (CEST)
From:	Piotr Gluszenia Slawinski <curious@...by.dyndns.org>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
cc:	linux-kernel@...r.kernel.org
Subject: Re: thinkpad 360Cs keyboard problem

On Tue, 12 Sep 2006, Dmitry Torokhov wrote:

> On 9/12/06, Piotr Gluszenia Slawinski <curious@...by.dyndns.org> wrote:
>>  On Tue, 12 Sep 2006, Dmitry Torokhov wrote:
>> 
>> >  On 9/11/06, Piotr Gluszenia Slawinski <curious@...by.dyndns.org> wrote:
>> 
>> > >   kernel boots up fine, but keyboard is totally messed up,
>> > >   and locks up after some tries of use.
>> > 
>> >  Could you try describing the exact issues with the keyboard? Missing
>> >  keypresses, wrong keys reported, etc?
>>
>>  with prink enabled it prints series of 'unknown scancode'
>>  and keys are randomly messed up, and it changes, so like pressing b
>>  results with n, then space, then nothing at all.
>>  after some tries keyboard locks up completely.
>> 
>
> Are you loading a custom keymap by any chance? Could I please see
> dmesg with "i8042.debug log_buf_len=131072"?

no custom keymaps . init=/bin/bash :d
uhm, i don't get what you mean by this dmesg syntax :o
i should probably attach serial conole and send you whole output,
as now (as keyboard is unuseable) i can't scroll screen.

btw. serio: i8042 KBD port at 0x60,0x64 irq 1
is found.
also
input: AT Raw Set 2 keyboard as /class/input/input1
is reported

ah, i use gcc-4.1.1 to compile kernel .

-------------------- stuff below might be result of my ignorance

i just checked 2.2.27 kernel. it behaves quite identical to 2.4.33.3,
just after 'freeing unused kernel memory' it touches disk , and just
sits there. kepresses are echoed, and keyboard output is 
ok. i can reboot it by ctrl-alt-delete too .
when i boot it with 'fosh' shell commandline appears, but trying
to use any tool like bash, ls , etc results with signal 11.
tools are statically compiled against glibc-2.4 (compiled for 486 cpu
on gentoo)
busybox works fine.

on 2.4.33.3 kernel Xvesa (from kdrive package) complains
'set_thread_area failed when setting up thread-local storage'

cardmgr works fine aswell...(though was linked against different glibc)
  i guess there is some problem with math emulation and glibc,
as on 2.6.18 everything works just fine.

i recall few years ago i tried to make 386SX work on 2.4.20 , and 
there were problems with math emulation (some apps worked, some not)

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