[ILUG] laptop keyboard problems

[Michael Watterson]

Andrew Court wrote:
> Hi,
>
> First-off what distro, kernel version etc are you using. What make and 
> model
> is your laptop? Is your touchpad a Synaptic, Logitech, or ALPS touchpad.
>
> Read this: http://bugzilla.kernel.org/show_bug.cgi?id=6105  and let me 
> know
> if anything help.
>
> Have you tried it in Windows? Do you get the same thing? I am not 
> saying you
> have to use windows, but if you get the same thing in windows its most
> likely a hardware issue.
>
> Let me know how you get on.
>
> Regards,
>
> Andrew
>
Freedos etc boot floppy or CD should be enough to eliminate HW vs Linux 
SW driver issue.

The USB port doesn't use same SW stack all the way, so doesn't really 
tell you.

Normal keyboard faults you loose keys, rows or columns, or everything 
without any error message. An actual keyboard controller fault (which it 
slightly looks like) I've seen once in 26 years of PCs. I fixed it by 
swapping the 8041.

On laptops unless it is a physical keyboard fault, you are in trouble as 
usually even the touch pad & keyscan microcontroller are on the main 
board as well as any possible PS/2 KBD/Mouse 8041 type controller.

>
>
> On 6/25/07, Michael Thompson <michaelnt at gmail.com> wrote:
>>
>> Hi,
>>     my old laptop, just out of warranty, has a problem where the
>> keyboard and touch pad stop working. If i plug in a usb keyboard i can
>> keep working. dmesg says
>>
>> psmouse.c bad data from KBC - timeout bad parity
>>
>> Is this a software or hardware problem? Any ideas?
>>
>> Michael
>> -- 
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-- 
Mike